Haha, saying post docs have too much money is amusing!

They have time, because they accept lower remuneration for many years to work on things they are interested in.

All of this research has to get funding from somewhere. Presumably the funding bodies decided this was a potentially useful thing to fund.

So I'm not sure what your complaint is really. Are you unhappy because you personally don't see the value in some research? That it just looks too much fun to be "real" work?