It's not a consistent comparison, I compared him once. And it's not about Jeanty as a player. It's about positional value that I don't think RB has enough of to get one at 9. That's a luxury pick for when you team is good and you trade up because you need a RB more than you need draft picks. We're not that team.
EDIT:
Here is an article talking about positional value. NFL teams take less RBs and TEs less than any other positions in the first round. It's not just me that feels that way, NFL GMs feel that way too.