Except I don't think anyone was meant to think that Vance "got what he deserved". The heroes of the series that the audience is meant to sympathize with certainly didn't. The narrative of the story didn't present it that way -- it was "look at this horrible thing that has happened to Vance, that he now has to live through". He was ALREADY a productive and upstanding member of society before he got sent to prison, and the story never tried to claim otherwise.
I get that you don't care for the story -- but it just feels like you are deliberately twisting and exaggerating what actually happened in order to make a point?