Grace was nowhere close to the defender that Rolen was. If he was, he'd have played 3B instead of 1B.
Also, Rolen had 10 seasons with 20 HR's or more. Grace had 0.
I loved Grace, and would be thrilled to see mid-90's-Grace as our 1Bman in 2023. But Rolen was always a significantly better player and should have been in the HOF a long time ago.