For the other 90%? For his own personal reasons? It’s almost impossible to guess.

> For the other 90%?

If it’s this, the protest had no effect on him.

> For his own personal reasons?

I’m guessing this plays a bigger part than comments here give credit for. Pichai isn’t pitching anyone on anything of consequence to him at this commencement. He is, broadly speaking, flattering his ego.