I also think that getting jobs and places close to residential areas is a separate issue as we still need the bike lanes on the most unsafe areas. The two main things I think of are:
1. The folks working at major employers need bike access as well. Factories, call centers, distribution centers and large offices. Some of these places just aren't suited for neighborhoods, though they can be close by. It is much easier to get proper use of bike lanes if some or many of the big places have such access.
2. It actually takes more work to get the places closer, at least in the states. This is in no small part because of zoning and red tape. I don't really want to downplay that it'd take a slight difference in society as well - along with the likely need to subsidise som of the places.