Some of the larger national non-profits pay their top executives massive salaries. Do a little “googling” about the salaries paid to the top executives of the Red Cross just a few years ago (over $600K/yr for one of them), for example.
Pointing out to me that some 501s pay massive salaries completely is meaningless.
IIRC, the Atlanta United Way got caught with executive extravagance. This was 20-25 years ago I think....massive salaries, luxury offices, limousines, etc.
That was when I started tell my work not to bother me any more with United Way Campaign donation requests.