Perhaps, but the rerouting has a cost, which often lands on those least able to bear it; in the case of rent control, the cost lands preferentially on poor tena

Perhaps, but the rerouting has a cost, which often lands on those least able to bear it; in the case of rent control, the cost lands preferentially on poor tenants in the form of higher rents. And even costs that land on the rich make us all poorer in the long run. Because of the harm done, it's still worth noting that rent control and other "pro-tenant" law is rarely good for tenants, or indeed anyone other than sometimes well-meaning but economically illiterate busybodies.