I would say it's the equivalent of going through the process of jumping through hoops to be a contractor at a company, maybe doing some jobs (or not), and then failing to respond at all if they send some work your way. If you show yourself not responsive to their time constraints, they very well may decide it's not worth notifying you of work items, and ignoring any bids you submit.

Contract work is all about trust. If you show any behavior that makes you look less reliable, are they going to trust you with work? Flipped around, if the company doesn't respond to requests for payment, are you going to want to do work for them? It works both ways.