I don't particularly have a dog in this fight, I'm Australian, have never been either a Mask fan nor naysayer, I was simply curious when I saw the degree details posted.
It's quite an okay degree combo for a manager to have, Econ, Business, + exposure to some STEM.
And that's it, degree wise (sans any independant skill) it doesn't show any particularly ability in physics and|or engineering and were he to (say) apply to spaceX or elsewhere as an Engineer | STEM graduate for an Engineer | STEM role, on the basis of that bit of paper he'd be either binned or passed to "potential mid manager" pile.
I've been a part time STEM teaching assistent on and off for decades (six months, one or two courses, every third year) as a way of keeping in touch with old uni friends, a STEM consultant group, and upcoming talent looking for work .. liberal arts students doing 101 bridging corses vary widely in ability and mostly pass regardless (if they attend, hand in easy papers, and don't fluff rote exams) .. that's their skill level, STEM aware.
Some have actual STEM talent, many trade on the pretence of STEM talent.
TLDR; the relevance is that degree is no real evidence of any particular STEM skill.
Very probably (and I do mean this) Mr. Bean is|was a better Engineer than Musk (although admittedly he dropped out of his doctoral work for a more lucrative career)