The fat robot and the crippled robot were built so that other robots would have something (one? we need to work out the pronouns here) to feel superior too.
I just want to take this time to say the the new Futurerama's suck out loud just like the subsequent movies except for the first one mostly good but ehh.
Aww, Hermes didn't want Bender to know he was his savior WHO CARES YOU CLOYING DORKS NOT POIGNANT