Kutaragi contributed convergence of technology. That's not really gaming as far I'm concerned, he took what worked and made something that was technically optimal. Then through politics and persuation convinced talented game developers to support his platform. That's so different, of course it was important but it's not making gaming what it is. I would put Sega's contributions to 3D, and many of the developers working under the PlayStation above what Kutaragi did, and that's not saying much.
As far as marketing to more mature audiences, that was borrowed from the Gameboy and Genesis. It was a convergence of what worked and done optimally, that's fine and good but let's not turn it into something it's not. He brought unity of the things that worked well, but were started by others, that was good and something that Sony as a whole built. We're proud of that and we enjoyed it, I enjoyed it. The PS1 and PS2 were both very fun systems.
