Comment by rcxdude

If you care enough and have the resources available. It's rare for someone to care only about one specific thing like a bicycle ramp to put in the resources to make a difference, though.

(i.e. my experience is that people do, on the whole, care. But they generally care about different things, and especially have different priorities in terms of how they allocate their resources, especially time. This blog is a rant about people caring about things that the author cares about, a lot of which are reasonable, but are not the be-all end-all of priorities)