Maybe not “worthless”, but they are only going to get your foot in the door. Unless you really took it to heart and are financially adept and able to apply it in a specific sense, it’s just a business degree and nothing more.
They look good on the resume and will get a head nod from an interviewer, but nobody hires into a 6 figure job based on an MBA—unless you have one of the hard (re: physics/engineering) degrees and a track record to go with it.
I’m not saying don’t bother, just don’t get your expectations too high. I did get a promotion I wouldn’t have gotten without it, but it ends there, and the rest is up to me.