Gatsby is not in the same class as Wilson. Gatsby is closer to Tom because they are both rich etc etc. Meyer Wolfsheim is closer to Gatsby. They both get their money illegally.
1 is grammatical but 2 is supposed to read as "I am not so rich in the present" not "at present" and 3 is fine. "At the present" wouldn't make much sense (To me) Hope that helps :^)
