Personally given the cost of the equipment, wages for the operator, heavy public liability insurance premiums and licences for flying the drone etc I cannot see that one or two pictures would justify the increased expenses/lower profits that would follow as a result.
I disagree. A phantom drone is $1000. You can use it yourself, if you're willing to spend 10 minutes getting it out of the car and flying it. Public liability? They've got rubber/plastic rotors, not dangerous, and most people operate them without going through any loopholes.
It's interesting, and it might just gain him more followers, more interest, awards, reputation for creativity - all the things that lead to greater profits.
He's taken a risk and got some beautiful, creative photos. That already tells me he's ahead of the competition.