1) Raj is Sri Lankan, not Indian. 2) Kerviel is French, grew up and was educated in France, and worked for a French bank. He isn't a racial minority. 3) Jett was a minority sure and Milken, Boesky, etc. were not minorities. Not exactly a pattern there.

He was also worth nearly $2 billion before his conviction.

Also, Indians aren't exactly underrepresented minorities on Wall Street. There are tons of them in the industry. Also the guy who prosecuted Raj Rajaratanam was Indian...

This is a huge claim. If you are going to claim that white-collar convictions fall disproportionately on Indians you are going to have to provide data that give evidence of that claim.