[Maarten88]

I think marketing (all of it, not just ad-technology) should be added to the list of jobs where too much human talent gets spent/wasted.

I have seen honest businesses destroyed when bad actors entered their market, charging 5 times more for the exact same service, easily outbidding the honest businesses on Google adwords and other marketing channels and then use the proceeds to buy positive reviews and pay off the few customers who found out they were ripped off.

All this ad-tech only serves Google/FB and businesses that overcharge customers, at the expense of society.