I noticed a similar thing with Wikipedia and the ACLU. Too much money seems to in some ways be a curse. Organizations seem unable to Instead of just put a bunch of money away for a rainy day and then stop fundraising for a while when there's enough money to carry out the core mission. Instead they find more and more missions to expand into in order to spend whatever level of money is coming in.

The problem with this is that the people working on this peripheral expansion missions don't think of themselves as peripheral. When there's a money crunch or a values conflict they will fight hard for theirs even at the expense of what the organization was always supposed to be about.