That's part of it. Another part is old-school rent-seeking via real estate trolling (speculating), which is exactly like patent trolling. But a lot of tech pro

That's part of it. Another part is old-school rent-seeking via real estate trolling (speculating), which is exactly like patent trolling. But a lot of tech profits are just "network effects" and vendor lock-in and not really a result of any kind of government privileges. Yet, if we had policies which fostered competition and open standards then we'd have less vendor lock-in.