how does Fitzgerald present decent and hypocrisy in the great gatsby

Myrtle- Married to the struggling mechanic, she gets what she wants through the rich and also married Tom Buchanan.

Tom is angry about daisy's affair with Gatsby, which would be justifiable if he hadn't been ensconced in his own affair with Myrtle, but there are double standards here, and Daisy is the woman. Tom's hypocritical reaction is to comdemn Daisy and to defend family solidarity.

Tom deceives Myrtle and her sister that the reason he and Daisy cannot divorce is because they are Catholic; they aren't.

Gatsby is deceitful about his entire life; the only honest thing he knows is the love he has for Daisy.