Lord Peter Wimsey has many things of dubious realism going for him, but the one which concerns me at the moment is his great wealth. Sayers never explicitly says just how wealthy Lord Peter is, but there’s no indication made that considerations of expense ever stop him from doing, well, anything. From a reader’s perspective, his wealthy is effectively unlimited, though it is generally used with restraint. Lord Peter never buys an apartment building or a cruise ship for the sake of a plot, say.
There are two aspects to Lord Peter’s wealth which concern me at the moment, and both of them are related to the writing of detective fiction. There’s no obvious order to address them in, so I’ll start with his wealth. Since his wealth is kept within limits, it’s not unrealistic in a science-fiction sort of sense, and it is somewhat justified by Lord Peter’s being a member of the aristocracy—a Duke’s son, in fact. That said, this is England at a time when the aristocracy was disappearing as it lost its money after having lost its justification for existing with the rise of the professional army. Hints are occasionally dropped, therefore, that Lord Peter used a smaller amount of money he had as a Duke’s son to invest and build much greater wealth.
This is of course possible, though it conflicts somewhat with Lord Peter’s experience of the Great War as a young man and his long recovery afterwards. Further, businessmen are often busy; work does not do itself or we’d all be rich.
However, here we come to the big question about realism: what is realism for, in fiction? After all, if we wanted complete realism we’d put down our book and live our own life. There is nothing more authentically real than that. And further, murder mysteries are almost inherently unrealistic. Almost none of the crimes which are found out have any planning behind them. Intelligent, hard-working people almost always have better things to do that to murder friends and relatives. I say almost, because this is not always true. I’ve read that back during its glory days, poisoning people was almost the imperial sport of Rome. But in modern times, murders are almost always either acts of passion, acts associated with organized crime, or possibly (since we don’t know) simply undetected. If anyone does plot complicated murders, they almost always get away with it.
So having a consulting detective at all is fairly unrealistic. Having him be very rich and investigate mysteries because he’s eccentric is no more unrealistic—it’s just unrealistic in a different way. For the most part no one cares that consulting detectives are unrealistic because if you didn’t simply ignore that unrealism, you wouldn’t have a mystery novel at all. Being rich is not so necessary, but it is a lot of fun. In fact, this is why Dorothy L. Sayers gave Lord Peter so much money (quoted from the Wikipedia page):
Lord Peter’s large income… I deliberately gave him… After all it cost me nothing and at the time I was particularly hard up and it gave me pleasure to spend his fortune for him. When I was dissatisfied with my single unfurnished room I took a luxurious flat for him in Piccadilly. When my cheap rug got a hole in it, I ordered him an Aubusson carpet. When I had no money to pay my bus fare I presented him with a Daimler double-six, upholstered in a style of sober magnificence, and when I felt dull I let him drive it. I can heartily recommend this inexpensive way of furnishing to all who are discontented with their incomes. It relieves the mind and does no harm to anybody.
And Lord Peter’s wealth is not fun only for the authoress, it’s fun for the reader, too. While certainly not necessary for detectives in general, it is necessary for the character of Lord Peter, and I think that is sufficient justification for it.
(If it’s not clear, I have hang-ups about realism in fiction which I’m trying to reason through.)
And I think that this bears on the writing of fiction generally, and detective fiction specifically. Most of the fun comes from the unrealistic things which go into the making of the make-believe. But those are not themselves the fun; the fun consists in the realistic treatment of these unrealistic starting points. And this is where many people go wrong—instead of limiting the unrealistic elements to the premises of the story, they introduce further unrealistic elements into the plot, to rescue them from the difficult work they’ve set up for themselves. That in fact destroys the fun precisely because it is, in effect, undoing the premises. An unrealistic solution to unrealistic premises is in effect a rejection of those premises.
And I think that this is the key to finding other fun—having other characters who are unrealistic, but in compatible ways with the main unrealism. In such circumstances, comic relief often consists of an entirely realistic person trying to cope with all of the extraordinary things around them. But the key is that they have to be dealt with as extraordinary, not as unrealistic.
Anyway, just some thoughts for now, not at all settled.