Sony can't really do shit, if the publishers are demanding PC style DRM.
They could. Publishers go where the market goes because they are greedy as fuck. If 50 million people bought the system with no DRM and 5 million bought the system with DRM, guess which one pubs would make games for?
For the longest time, PC games were treated like afterthoughts and publishers had the freedom to use all the DRM they wanted on PC. Why? Because console games made more money.
Unless publishers force everyone's hand that wants to play games. If all publishers ditch Sony and go with Microsoft, then what are gamers to do. Most console gamers just can't take it. They'll end up buying the Xbox One just to play the latest Madden or Call of Duty. As much as I hate to say it, but if I were a smart business man I would look at this as a long term money-maker there would be less used game sales floating around and more new purchases.