As for your claims about compensating sex workers based on performance , I'll just have to take your word for it; I have no product or service experience in that industry.
Mortagage risk is something we can (and should) evaluate- don't loan money to people who can't put 20% down (maybe 10% with PMI) Utilize strict LTV and income/payment underwriting guidelines, don't loan money under ludicrous creative financing schemes (ARM's, 110% LTV loans, etc.) Unfortunately, the dimbulbs in DC decided that the concept of people actually qualifying for a home loan was somehow discriminatory (starting with the Fair Housing Doctrine) and were asleep at the switch in regulating the mortgage industry during the resulting boom of unqualified buyers-at all income levels. Government bailouts only exacerbated the crisis, IMO.
I'd like to understand more about why you feel teachers shoud be entrusted with educating our kids and be enabled to operate under an immunity system with no accountabilty for their results
Wouldn't you prefer the best and brightest educating your kids? Wouldn't you like to be able to get rid of teachers who aren't qualified to teach?- just because you earned a teaching certificate doesn't mean you earned a lifetime career of producing kids who can't read or write. Implementing a system of performance-based compensation against reasonable objectives scares the sh*t out of low performers who are just putting in their time, in any profession. Your premise that it can't be applied to teachers is an issue of will, not skill, IMO.