im guessin youre a new fan or something and dont know about his history and what he stands for. in order for him to go mainstream, basically everything you know about tech will be different.
The "mainstream" industry has fucked so many artist over. Tech wants to do music his own way not the industry's way wich is maistream way. Tech has made a couple of songs why about this "The Industry is Punks" and "F.T.I". If he does go mainstream he'll get fucked over as well, and Tech already racks in so much cash.
Cause - He has taste..
And a soul...