I don't think he turned the wheel, that's the position it was in. He just got off the brakes. And you can see he was facing Dario. He knew Dario was coming, he knew where his car would go if he got off the brakes.

Drivers know the effect of getting off the brakes in a spin, as well as getting on the gas (remember CART at Fontana?). You especially see it in NASCAR, but I've seen it in many other series.

Danica was way off Dario's pace, so it wouldn't make much sense to impede his pursuit of his championship contender. I think a lot on non-teammates would've also let him by. Why make an ass out of yourself, delay the inevitable and invite a desparate bonzai move? Sheckter moved over for a faster car and Helio expected him to do the same for him, right?