Well I guess it's confirmed, I'm pretty callous.

I rarely get upset by roadkill. In our modernized countries there are so few large natural predators (wolves, bears, big cats, etc) and essentially cars have replaced them in the scheme of things. Everything dies, eventually.

About the only time I can recall being upset was when I rode by a mama duck that had gotten run over. Next to her was a baby duckling that appeared to have starved to death while holding vigil.