I think in practice it usually works the opposite way though.

The free will mindset tends to put more emphasis on a type of guilt that follows someone around their whole life. It's a way of getting stuck in the past.

Whereas without free will, we know that the future is all that matters, at least in any pragmatic sense. And so we are never really focused on punishment, just damage prevention.

Another thing to think about is that, when we assume people have free will, it also means we ultimately hold everyone responsible for their actions, even if they had unfair circumstances that let to them. And that mindset makes us less likely to investigate reasons behind why they did what they did.

Whereas without the free will assumption, we assume that there are always reasons behind people's actions. We just have to look for them.

And once we figure out why someone did what they did, then we're actually in a position to help them change - moreso than if we just assumed it was something inherent to their free will.