Any vendor of hardware RNGs can easily and secretly be forced to build in a backdoor (including the one we're discussing here, as you kinda need to trust that these tiny little microchips do what they claim to do). Actually, selling fake TRNGs would be a low cost, high reward excercise for any intelligence agency anyway.
Corrupted TRNGs don't make things worse, but also not better, and you keep depending on your existing entropy sources, whatever their quality may be.
Therefore providing computers with TRNGs made by Intel etc. would only create a false sense of security.