Helms was not decent. He built his entire career on hatred, bigotry and contempt for anyone different from him or anyone weak and vulnerable in society. I don't like seeing someone like that having their reputation whitewashed and sanitized.
You have to be careful when you start using words like these because they can often be found in members of the other side of the aisle too - though usually it happens on an individual to individual level, rather than on an individual to group level
I personally doubt that his career will ever be whitewashed and sanitized, much like Sam Ervin's was, as John Fund noted today, and it probably shouldn't.