First of all, not everyone needs a massive cock in their ass like you do. If Rodney or anyone else has an average (or even small) cock, that doesn't make him less worthy as a man, or less wanted by other guys.
Having a huge cock is not a requirement to be wanted or to be loved.
Secondly, the fact that he doesn't show it off doesn't proof anything. He just doesn't feel comfortable having pictures of his cock around the internet and that's it.
He is a very handsome man with an amazing body, so he would expect that his pictures are going to travel long distances. It's smart to share only pictures that suggest and keep their artistic nature, instead of sharing just pornograhic content.