Jill also had to spend a few years in prison, so it's not like she "got away with it" and scammed the taxpayer into improving her life.
The real issue is that currently both Jack and Jill are getting screwed over by society. We should fix both. It wouldn't even be that expensive and it would in fact probably lead to greater happiness and lower overall societal costs like healthcare (e.g. poor people kicking the can until they can't escape it any longer and now it's a very expensive stage 4 cancer) and justice (don't need to pay for as many expensive courts if there's less crime). And probably more tax take as everyone in the bottom 90% of society basically spends what they earn and doesn't hide it in the Caymans.
But greater and more equitable overall growth is still less short-term growth for the top, so we can't have it.
The real issue is that currently both Jack and Jill are getting screwed over by society. We should fix both. It wouldn't even be that expensive and it would in fact probably lead to greater happiness and lower overall societal costs like healthcare (e.g. poor people kicking the can until they can't escape it any longer and now it's a very expensive stage 4 cancer) and justice (don't need to pay for as many expensive courts if there's less crime). And probably more tax take as everyone in the bottom 90% of society basically spends what they earn and doesn't hide it in the Caymans.
But greater and more equitable overall growth is still less short-term growth for the top, so we can't have it.