Although important, personal ethics alone do not guarantee any degree of professionalism or competency.
A combination of that with knowledge is necessary, whether it be school or otherwise.
A license guarantees some accountability.
Most handymen don't (in fact can't) pull permits for any of their work. The electrician that may inspect the work actually should have a REAL inspector inspect his inspection! You wouldn't feel good about having a nurse look at the operation that the intern just did on you without even consulting the surgeon.
[This message has been edited by electure (edited 05-23-2005).]