no ... what you said is "justice can be purchased"
That itself indicates wealth can make one immune from all charges of guilt in a court of law. I don't necessarily buy that ... the public loves to see the wealthy and high profile individuals put on trial and yes, many cannot buy their way out of justice.
OJ was an example of a Hollywood extravaganza ... sick showcase in itself.
In regards to Milgaard and Truscott ... who knows ... both cases were in small communities where the public was charged with emotion and the subsequent demand for quick resolution and severe verdict applied. In that emotional haste 2 innocent people were charged, and incarcerated. If the accussed were wealthy and brought to court I'm sure they too would have been been sent to jail.