Why should they?
We can sit around making up what-if hypothetical tropes till the cows come home, and nothing will change. The rich at the very top just get richer.
The point is to see past your own pile of coin and think about society as a whole. If people were up for sacrificing that second holiday house and their stupid expensive watch or whatever, so much good would come of it.
Inequality fuels crime , public services like trains suffer etc...
I think ‘giving money to free loaders’ is a bit of a straw man, as the second order effects benefit everyone. Including you. And note I’m not advocating communism.