Perhaps now we can finally accept that regulating how often people can travel, or how much wealth a single person is allowed to accumulate, or indeed how much toilet paper a single person or family can buy in the face of a crisis, trumps any notion of normative egoism.
"Regulating" can mean more than one thing. I advocate that all government and civilization overhead (including environmental costs) should be embodied in sales taxes so that in capitalist societies, the individual sees the real costs at their decision point: the purchase. Will everyone make the right decisions even then? No, but they don't all have to.
Rewards from such a system (collected revenue) should be in the most part redistributed as UBI in order to ensure individuals have access to resources to be useful to their place and themselves (their best interest, not necessarily their 'self'-interest).
When compared to the current 'progressive' codes of fees, codes and income taxes that accelerate consumptionism as a rule (and devalue their rewards for useful work), it's the least intrusive form of regulation and it acts as an education system.