Since you titled this as a "Moral question". If you have (or will have some day) a son and he told you the same thing, would you find it GOOD to tell your son it is OK to do such.
I think WOODSAC put it simple with no soft shoe. I agree. There really is no need to do such. Just fish another lake that is legal. If you really want to fish there then get permission from the existing owner. If not then just forget it.
Some people do a lot of things that are wrong and feel OK about it. That does not mean it really is OK.
A good fisherman can catch fish in tough conditions. If you are then why go? If you are not then just learn to be.