DA does not get the final call to imprison or sentence anyone. Show me ANY official bribed by ANYONE from a public prison that directly resulted in false imprisonment.
Just ONE
He can choose to try more people, manufacture false evidence, suggest longer sentences, etc, etc. His power to accomplish the necessary population increase is actually far greater than a judge's.
Corrupt DA's have been around since the office of DA was first instituted.
I say again....show me statistics comparing government-run institutions vs. privately-run institutions...not anecdotal data.