What would stop an evil entity from picking up your garbage and dumping it in the nearby park / side of the road?
It's a double edged sword for sure. I'd love to see more open and creative competition in the industry, but since disposal and transportation costs make up such a huge % of a hauler's expenses there will certainly be corrupt entities dumping waste in a canyon somewhere just outside of your community.
Tracking the waste from source to destination accurately and in a way that people can truly trust will certainly be a key to success here. It's worth noting that it is still very likely that some contracted and "compliant" haulers are doing things with your waste that they shouldn't. So that's another place that a start up could potentially differentiate themselves.