jesus christ man you dont have to go that hard for a low quality game jam
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For a lot of indie devs. especially folks in the GameJam community, finding well composed music that fits their game is a massive channelge.
I like being around to offer original soundtracks, I know it's helped dozens of Jam teams focus on finishing their game knowing that music is being handled by someone with their best interest in mind.
I wouldn't even say it's really "going that hard". Some Jam games only need two or three songs. I can do multiple games like that in a day while doing more fleshed out games over a week or so.
I'm making music (paid employee) for four fully developed games at the moment, it really just helps me keep active and creating to help out in these jams.