Gatsby is a bootlegger

I think the question probably comes out of the fact that the narrator of The Great Gatsby partly admires Gatsby, and partly just likes him. If you think about what a mythic hero does, he usually risks his own well-being to save people from danger or bring mankind something it really needs. Does Gatsby do that, or not? Then a morally indefensible character does things that are simply wrong and cannot be justified, because the character thinks about nothing but his or her own well-being. Does Gatsby do that, or not?

Gatsby is a bootlegger and possible career criminal.

Gatsby engages in adulterous behaviour.

Gatsby covers up the manslaughter of an innocent woman.