Considering immoral practices adopted by corporations, such as vendor lock-in, use of slave work (directly or indirectly), law bending for its own interests, supporting and conducting biased research towards its own interests among others, I would say that is quite sensible to believe it. Big corporations, per se, are not evil entities. The people running them might or might not be, and when you have evil/immoral people running things, unless there are good control measures in place, they might take bad decisions.