Some of the greatest crooks are actually rich people with pressure to keep the money flowing so it’s not so simple as to who has the bigger nisoyan to cheat.
Also, while I’m not advocating for a smell test, when one has a trial by JURY, smell tests unfortunately are sometimes part of the equation. The perfect example would be all the ethics scandals swirling around New York State lately. While I haven’t been following any of those close enough to know all the nitty-gritty, from cursory reading of the news it seems a lot of the stuff being alleged are not a matter of simple black or white regarding legality.
On the other hand, when a prosecutor wants to “get” someone, he too is in my opinion charging with crimes — as they say in Yiddish “aroisgezoigen fin finger” — in a shady matter.