"Contributed to", "contributed for", or "start to"

Question

I just want to know if this sentence is right:

It contributed to the decision of start respecting people.

If it's not, how can I fix it? I've no idea if I should use contributed for or start to instead.

Answer 1

I would say:

It contributed to the decision to start respecting people.

It contributed to the decision is fine. What was the decision? to start respecting people.