Why?

By "working for free", I take it not meaning in the truest sense but some warped new speak sense whereby adverts proclaim a few bucks off the rrp = "saving you money"....by spending money, where feral philanthrofaggots are saints for "selflessly" "donating" to independent "World Retard Organizations" they secretly also control, where "free" extends only as far as authorities allow, while excess "free" equals "criminality" and is merciless punished. Where we surrender our data for "free" as it is weaponized against us for profit & control, and "working" is merely a cunning euphemism for wage slavery.
Why is Trump working for free?
Straight cash money ain't the only form of value aye man. Apparently the leftards are fixated on the financial value designation too. It's surprisingly hilarious, coz the idiot lefties hopelessly keep trying to portray Trump as financially criminal or at least dishonest so they're completely incapable of recognizing anything else going on.

Trump absolutely ain't "working" for "free", and this "donating" the presidential 400k/year salary is a clever inversion.
It'd be more accurate to describe this as exchanging the Pres salary for a unique form of variable self-promo potential.
Same shit philanthrofaggots like Gates regularly attempt..... although with laughable results by comparison.
Gates has blown millions upon millions trying to buy positive public perception and still looks like a vicious little nerd.
Trump already looked better than Gates could hope, and merely saying no to 400k prolly boosted Trump's public perception more than all of Gates' publicity schemes combined. Perhaps I'm exaggerating a bit, although considering the copious amounts of negative shit I've been reading about this today, Trump still looks pretty good despite it all.
Meanwhile no matter what Gates does, no matter how sickeningly positive the media portrays him, Gates somehow always looks like the exact same twisted little shit.