If you're including sales in the bucket of administrative tasks (and fundraising is very much equivalent to sales), many successful companies are at or near 100% administrative tasks.

It does seem odd that so much of the work would go towards paying to keep looking for more money (fundraising for fundraising), but there are plenty of sales oriented organisations out there who don't make anything. It's just odd in this case that an OSS project seems to have gone on that direction.

I suspect nobody should be earning such a salary working on a project like that.