That may be feasible in some instances, but indefensible in many or most. Politicians can mandate what taxes you pay, what benefits you provide, what salaries/wages you pay, what products you can sell, where you can sell them, where you can expand, your hiring & firing practices, determine whether you are considered for government contracts, make it easier for your employees to unionize, enforce licensing criteria to engage in your business, seize your property via eminent domain, et cetera, et cetera.
That kind of impact should never be ignored.
I don't mean regulatory threats. That is a matter of course, like the weather. What I mean is that business creativity is unpredictable, as George Gilder said, and cannot be centrally planned by bureaucrats.