Question

Ethically, it seems as though the punishment is well out of proportion for the transgression. however, it seems as though it is worth the harm done to a few rule-breakers if the punishment prevents others from parking there. in other words, the "good" to the general community outweighs the harm of the severe individual penalty. the philosophy that supports this is:

Answer 1

I believe the answer is:  utilitarianism

 utilitarianism refers to a principle that view the best decision that can be made would be the one that utilize the full efficiency of the resources.
In the process,  utilitarianism society might overlooked things such as moral as long as the benefit outweigh the unethical impact.