Yes, we Germans generally stop at red lights (even a lot of pedestrians do so). I guess most of us respect most of our traffic laws (except for speed limits).
30 km/h and even 50 km/h are respected pretty much nowhere except where there are stationary traffic cameras. I ran across an article recently (can't seem to find it again) where 90% of German drivers voluntarily admitted to not keeping to the speed limit.
For most people, breaking the speed limit does not seem a big deal. Then they run over a kid and say "I didn't mean to do that"! Well, they did in a way - keeping to the speed limit is not hard.