Rodimus belives himself destine for greatness, and he does have some modicum of skill to back up that assertion.  He's taken up a ship and a crew to find the Knights of Cybertron.  Arrogant and rash, he nonetheless has a good spark beneath it all.  Burried very, very deep beneath it.  Maybe.  If you squint.  Despite all that, he often times feels crushed by the burden to lead those under his command to safety, riddled with anxiety that he masks with an air of carefreeness.