If by that you mean, I would avoid buying the vehicle, then yes I won't care since I don't own it.
On unibody vehicles in the rust belt, avoiding damage on that jacking area is pretty important. If all you have with you in the vehicle is the factory jack, where do you intend to jack it up on the roadside if you've destroyed the area where you're supposed to do it? If using a floor jack without a saddle adapter, it would be better to just pick a different spot and not jack on the pinch weld.
Might as well use *something*, even if it's just a couple little scraps of wood. Anyone with a sabre/recip saw and a scrap of plywood can even make something custom fit for a particular vehicle, unless the vehicle sits really low to the ground so there isn't enough clearance.