It depends on the consequences of the corruption. If it was just typical graft and favoritism then prison and permanent blacklisting from political life is probably more appropriate. If it was looking the other way on safety regulations or the graft measurably caused death and considerable suffering through diverting resources from where they were needed to save lives, then it's murder or manslaughter and there's a point where that is appropriate to punish with the death penalty.

Especially since every decision would be formally on the record, as would its consequences. It's not like the shitshow that is trying to determine guilt at the level of a private individual where there's only circumstantial evidence. Most of the problem with the death penalty is that the legal system is a depraved, fundamentally illegitimate shitshow in the US (and most places) that cannot be permitted to have the authority to murder people based on whatever nightmare logic a christofascist judge decides to allow in court.