Some policies are so badly designed that they become irreversible. Take, for example, the “5/20” rules for airlines in India. For an airline registered in India to fly abroad, it needs to have been in operation for 5 years and have at least 20 aircraft. The rule is silly, and the government wants to change it. But established players say that changing the rule will be unfair to them, for they have sunk costs in order to comply with the rule and want newer competitors to go through the same.
Now, given that the airline industry is dynamic in terms of firms going in and out of business, there will always be new firms and old firms in the market. And given that the rule is fundamentally senseless, there will be proposals to change it at many points in time. Now, notice that the arguments that today’s established players are making can be made at all those points in time! In other words, if you were to postpone changing the rule because older airlines are going to be unhappy, you are giving reason to postpone the rule change indefinitely!
When you design a policy, you should keep in mind that there is a chance that changed market environments might render it useless/absurd (as for the 5/20 rule, it was absurd from inception!). Hence, you need to consider how easy the rule is going to be to dismantle when it goes past its use-by date. If such a “poison pill clause” doesn’t exist in the rule, then it will be very difficult to undo and the absurdity will propagate into perpetuity, causing much more damage than necessary!
Then again, if the rule has been framed due to the influence of bootleggers (the 5/20 rule definitely has indications of that, and it is hard to identify any “baptists” who could have backed the rule), then the bootleggers are likely to prevent any such “poison pill clause” from being put in. Such are life.