Searching for music - Star Trek: Website

I’ve always wondered why artists don’t cash in and do this themselves.

Do the ones who do just not get popular or is it some sellout thing, or has nobody genuinely tried to do it regularly with their own music?

I would guess that, after working on perfecting a song for weeks or months, it feels very weird to completely change it in 2 minutes by applying 2-3 transformations and releasing that as a separate version
They get their cut via Youtube music breakdown. Anything that uses their shit sends a cut to them.
“…It was a beautiful song but it ran too long. If you’re gonna have a hit you’ve gotta make it fit so they cut it down to 3:05.”