They are are just going by there rules! You see it because they get payed first because you are renting that spot on the table.
It would be nice if every thing in life would rent free. Money would not be needed. Just think about it.
There would be no excuse to work!! But until that happens they get the rake first for providing the space for the people you described in your post to play for entertainment or whatever. ;D Besides it does not happen all the time! :D
AS THE SAYING GOES:
SEWAGE HAPPENS_________________ `` THAT`S WHY MAN HAD TO INVENT THE TOILET!!``