Once you start from destroying democracy, the chances that the results will quickly put keeping the owner in power ahead of anything good for humanity are high. Autocracies are, in practice, inefficient messes that put loyalty ahead of competency, so one cannot really get prosperity in exchange for no representation. The loss of representation will get us the loss of prosperity real quick.

This also applies within companies. You can get temporary lucky with a CEO that isn't accountable to anyone, but then that brings sycophancy, leading to degraded decisions. It's how it always works.

So it's very clear cut, because you are offering a trade that cannot actually happen in practice. The economic growth will turn into zero sum status games, like it always has.