Because that leads to a snowballing effect. Money begets money. Over generations, it gets sucked into an ever smaller pool of people. This (among other things) led to serfdom etc in the Middle Ages. We only broke out of that due to the Black Death.
We need a way to allow money to spread back to the general populous. An inheritance tax is a crude, but effective, way to do that.
How would you go about achieving this?
We also set up an excellent photo booth with the same setup.
A DSLR, on a tripod, a cheap remote trigger, and some photography lamps. We used drapes to box it off a bit. Throw in some inflatable props, and let the kids/drunks make it awesome.
The photos on the TV just encouraged others to join in the fun.