That's kind of the point. Instead of adding $20B a year to the fund, using another $5-10B to do good work now does a lot of good and still leaves $10-15B to #makeitatrillion That fixes a lot of pipes among other highly worthwile things that could be done.

There's a million things outside the church's scope that someone could say they should do, but I try to compare the time and money spent to the Church's own stated missions and see how in line they are. If they are great, I can't really say much outside of that, but if there's a place of need within that and resources to fill it I don't see why they wouldn't.
#makeitatrillion