As one that has been making a living flying UAV's for a government contractor for the last 10 years I'll state with conviction we need to go slowly with this. Although many are champing at the bit to start making money with this fancy high tech equipment I can say from experience that concerns about privacy, data collection, storage, oversight for use, and regulations are more necessary than most can conceive. In the environments of Iraq, Afghanistan, Africa, and on the open sea those flying under government authority have paid no heed to concerns, rights, or privacy of the people on the ground or surface of the sea under them. A fair number of private "operators" have done as bad or worse based upon the videos they've posted on You Tube. As an operator I've looked anywhere I wanted to and nobody could prevent me from swinging the camera to see anything that was viewable. Once you've found you can look into windows you instantly understand you will be robbing people of their right to live as they choose.
I'm well aware that many won't much care for what I just wrote but making money and everyone's rights are not two things that should be slapped together to hope for the best. Our police agencies have a long habit of breaking law at will and our government breaks laws faster than they can enact them and then ignores the law under the guise of national security. Once the genie is out of the bottle there will be no putting him back. Don't let greed over shadow doing the right thing at the right time.