I don't think it's correct to call runners who don't acknowledge people "rude".
I don 't wave to runners, or acknowledge people I pass in the street who happen to be wearing the same brand of jeans as me, or rush to shake hands with people I see in the supermarket who have the same number of ears that I do.
It would be slightly precious at best (or more likely downright needy) in each of these three cases for the erstwhile counter party to consider themselves snubbed.
Maybe not a role model, but definitely an influence. Ched Evans is still saying to his chanting, ITV2-viewer supporters (by his refusal to accept that he did anything wrong, and the character assassination of his victim on his website) "if you see a paralytic girl at a party, have sex with her. It isn't rape if you aren't wearing a ski mask"
The law says otherwise. If he had admitted that raping is bad, and shown some contrition, then his reception might be better