Ported intakes

Porter makes a mistake, an intake or head goes down the tube.
Doctor makes a mistake, a possible life goes down the tube.
You do the math.
I'm not sure what your point is. Do you really think porters make more than doctors?? Besides, It's a totally voluntary system. No one HAS to have their heads or intake ported. If you decide after doing a cost-benefit analysis that it's not worth it, then don't have it done. Or learn how to do it yourself.