Well, there’s the obvious (though obvious != effective, of course) solution of making it even harder to get hired by a company that does work or the government after leaving a government job, and imposing stricter hiring rules on regulators. This is the idea behind rhetoric about “getting rid of the revolving door.”
Such a policy would require regulators to enforce, who would themselves be subject to regulatory capture.
Such a policy would require regulators to enforce, who would themselves be subject to regulatory capture.