From reading Russian language on-line press, I gathered that Perelman does not care about recognition by the world community. He's been a hermit for many years, only formally employed at some math research institute by people who helped him to sustain himself. Yet you made it sound as if he has gone sour on "mathematics" (meaning the science establishment). in my opinion, he is just enough crazy to not care about that. You are right about one thing, though: had he lived in the U.S., he'd be a bum on the streets of S.F. since no U.S. university would have put him on payroll.