Big players don't have to be malicious in this particular case. There are other financial incentives for big players not to go to court. For once because patent

Big players don't have to be malicious in this particular case. There are other financial incentives for big players not to go to court. For once because patent troll might block sales of particular device / service during litigation. Also because in a big companies such decisions are taken by their own legal departments that might have skewed interests and KPIs.