I want to know the meaning of the expression 'had done well'. I read it in the book Fantastic Mr. Fox by Roald Dahl.
'THE OWNERS OF THESE FARMS HAD DONE WELL. THEY WERE RICH MEN. THEY ARE ALSO NASTY MEN.'
At first, i think this is same with 'good job'. But in that book, the men who 'had done well' is very nasty and mean. Is it sarcastic expression?