I've never seen a company benefit from layers of MBAs who are only there to hide their screw ups from the leadership while doing whatever they can to get promoted.
Strong organizations are usually bottom up, with a lot of ownership and direct contact between people doing the work and ones steering the ship.
I'm sure there are MBAs at Nvidia too, but what I found interesting is the vast majority of dozens of Nvidia employees from early years I interviewed were engineers and technical/operationaly employees. I don't remember interviewing an MBA.
I've seen founder led companies also get derailed by this, usually after raising a large round and getting forced by VCs to put their buddies in management positions.
Strong organizations are usually bottom up, with a lot of ownership and direct contact between people doing the work and ones steering the ship.