>>10646905He's the Prime before Optimus so he is important for the lore. Depending on the continuity he is either a radical enforcer of a police state or a good but angry conservative leader that opposes the Decepticons before everybody else does but society isn't listening to him and believing they could solve it peacefully till it's too late.
Choose your poison. Personally I love both.
Oh and there is also Sakamoto's Red Sentinel Prime who is a jobber that gets blasted but eventually returns to be a bro.
