Lyric discussion by fightingsleep 

Cover art for Formicary lyrics by Sleepytime Gorilla Museum

on the contrary, i think this song is about contrasting two archetypes; one is the politician, who is loved by the people, but really is a slimy person. The politician is doomed to fail and condemned to flail because he will ultimately go to hell for being an awful person. The other archetype is the benefactor (you could use Jesus Christ as an example here) who strives to help and better humankind, but is also condemned to failure and suffering because people don't accept the message.

The last few lines of the song seem to be contrasting how each archetype compare to each other from a political point of view, which seems to emphasize the point that martyrs are rarer than politicians.

And the end of the song leaves us with the point that both men would be king, but in radically different ways.

I think you more or less have it right fightingsleep. Except for the religious references.