Agreed, there is an economic factor here but I would see that is highly correlated with the Kardashev grade of a civilization. The conjecture of the OP is that higher Kardashev grade will result in higher atrophy. My claim is that we seem to find precisely the opposite to be true.
I'm not making a counter-argument to the OP's position. I'm only making a refutation of the conjecture.
I'm not making a counter-argument to the OP's position. I'm only making a refutation of the conjecture.