I think a lot of people on bikes disrespect pedestrians. I find it reflects very badly on cyclists who do respect other people with whom they share public space, and on Parisians in general. People have priority, not least because I as a cyclist have a machine to help me move about and pedestrians don't. There's also civility and just being nice to one another in general.
I actually think words like "pedestrian", "cyclist" and "motorist" create unnecessary conflicts of interest between people who live in the same city. Everyone is at some point a pedestrian -- we're pedestrian by nature!
Having said all this, I think people on bikes would be less likely to be as aggressive if cars were less aggressive towards them. (It's a vicious cycle, and in the end nobody wins and everybody is stressed).
I'm actually working on an article on this for the French press, to look at this situation from a UX pov.