“Everyone is distracted,” Rosenstein says. “All of the time.”
More simply put, "I created a product that works exactly as I intended it to."
If he felt that bad, he'd give the money back. This is like a eugenecist lamenting that his work was used to justify oppressing people. "We were trying to make the world a better place!" Fuck off, please. These people make media companies seem like chaste nuns. The fact that the one dude quoted above can have his assistant program his phone to not let him download apps is the embodiment of how out of touch he is.