Revelations 2 on Vita will easily sell multiple times what it would sell on Wii U. lol Sony likely didn't even pay for that one. At most, they might provide some dev assistance.
As for Street Fighter V, Capcom needed money to make it. Sony likely helped to fund the development and promote the game, making the entire thing possible. At the same time, it's not on Xbox. It is on PC (which doesn't really matter much, all things considered) because Sony weren't going to spend extra money to -stop- it from being on PC.
One thing people need to realise about Street Fighter V is that cross-platform play is the goal for the game... Just like, say, FFXIV. And FFXIV isn't on Xbone, either. MS are against cross-platform play because it makes their XBL sub look bad in comparison.







