[kourt]

It's very typical to more strictly regulate commercial use of the sky than non-commercial. For human aviators, the progression in licenses is Private Pilot (cannot even charge passengers more than their pro-rata share of expenses), Commercial Pilot (can get paid for banner towing, crop dusting, and aerial photography), and Airline Transport Pilot. Aircraft themselves are subject to increasing regulatory burdens regarding maintenance intervals and documentation depending on whether they are for private use (Part 91), Part 135 (charter), or Part 121 (airline).

In broadcasting, amateur radio operators ("hams") are allowed to use the airwaves much more easily than commercial broadcasters.

Perhaps this principle does not translate perfectly to drone operations, but the general goal seems to be to protect both individual liberty and consumers of for-profit service providers.

(Note that contrary to political rhetoric "government regulation hurts business", the viability of the airline industry depends on safety standards: the market has to be larger than "hardcore daredevils" to justify a fleet of 737's.)