If OJ Simpson's post football life had not been such a self inflicted disaster?

I'm all in favor of him being excluded in conversations about the greats of the past, but do most people do it because he is such an epic failure of a human being after football, or was he just not that good? Tried doing some research but any research about OJ typically yields news stories of his most recent criminal transgressions. I'm too young to know from watching him if he was a really good RB. I would like opinions, and for the record, I think OJ is a shameful person so I'm not at all trying to defend him, just pondering .