Yes. The early coins have been scrutinized pretty heavily, and the more time that passes, the harder it is to move a lot of coins (eg. with each day, the coin-days-destroyed increases, irrespective of exchange rate; and blockchain analysis gets better, which because Satoshi did not move the coins early on is going to work against him ever more - normally, the more time that passes and the more transactions that happen, the worse and more unreliable blockchain analysis gets, but since he's done no transactions...).
If Dorian came into a lot of money, I would want an explanation: did he sell an early Bitcoin startup? Did some other project (the things Satoshi moved onto) yield dividends? For example, one problem with Jed McCaleb as a candidate was that he seems to be rich, but that problem was satisfactorily addressed by his MtGox sale & Ripple work.
(That investigation proved pointless, incidentally: I ultimately scrapped McCaleb as a candidate because the password hashing on his MtGox codebase was inexcusably sloppy for Satoshi, and I simply can't see Satoshi deliberately endangering MtGox users just for the off-chance of a hack revealing the sloppiness and inducing researchers to write him off as cryptographically ignorant.)
Your first paragraph seems to be directed more at P(Dorian came into a lot of money | Dorian is Satoshi) than P(Dorian is Satoshi | Dorian came into a lot of money). It explains why you think that being Satoshi does not significantly increase the probability of coming into a lot of money, but it doesn't explain why you think being Satoshi decreases the probability.
Many of you here have likely heard of Bitcoin, and maybe know something about it.
Earlier today, a story broke that a reporter had apparently tracked down the real Satoshi Nakamoto, infamous creator of the Bitcoin protocol.
This seems like an excellent opportunity to practice our Bayesian updating!
So, how likely do you think it is that this man is the founder of Bitcoin? What do you believe and why?