Swaggering across the crosswalk, in such a way as to inconvenience others is considered manly. I know, because some random stranger in Cincinnati actually tried to give me lessons on that, specifically with regards to manliness. I hate those idiots.
What do you plan to do about it? I am not asking to provoke, but I have some friends who fall into this category as well. How do we change the mindset? I live in a place where it isn't the case, but I grew up in GA and saw it everywhere. What would it take to convince folks that taking care of the place we live isn't ladylike or manly, but rather necessary for our health and survival?
Simple. Have a society that values things working correctly. The nicer parts of Stuttgart used to be like this. Jaywalk? People look at you like you're scum. See trash? You didn't ever see a single scrap of trash, other than around those stalk-like cigarette butt receptacles. In fact, when I visited in 2000, every outdoor trash receptacle in Stuttgart was completely airtight by law. I had the strange (for me) experience of walking through a major urban area without once smelling trash.
Here in SF, in some parts of the city, you have to keep an eye out to avoid human feces.