I can see a line of reasoning that suggests that if abusive patent trolls had enough success against the giant tech companies, that the tech companies might consequently lobby for patent reform (for the purpose of protecting themselves from trolls), with the additional consequence that the reform would also limit their own ability to abuse patents.

Sadly, that is not likely to happen.

IIRC, Apple lobbied for patent 'reform' that targeted NPEs, while leaving producers completely off the hook for patent abuse.