The point of the contractors license is mostly accountability, a minimal level of insurance, and a minimum level of experience.
Many 'electricians' were grandfathered as licensed journeyman without exam here in Texas when licensing took place a year or so ago, regardless of ability. So a license doesn't necessarily guarantee quality or knowledge, just that they are licensed.
Bottom line is that someone (or a contractor) that is licensed now has something to loose if work is not done properly. A handyman or weekender has nothing to loose and proceeds accordingly whether consciously or subconsciously.
