What opened Pandora's box was the lack of faith in the Conclave by JP II and Benedict.  If there was an underdeveloped or "evil" change it was the refusal of these two popes to have faith in their own church to change in the necessary ways pointed out by Vatican II.  This did begin when Cardinal Otavani convinced Pope Paul that the church should not accept Birth Control Medications.  It is very interesting that you continue to bring up sexual license, promiscuity and homosexuality as all were part of the terrible clerical scandal that JP II attempted to eschew.  These two Popes very much decreased  the hope of the laity.  However in the story of Pandora, remember that Hope was kept in the box.  There are hopeful parts of our church today that are so often obscured by the condemnation by so many reactionary thinkers so fearful of proper changes.  Of Course these two Popes did nothing about the laundering mafia monies in the Vatican Bank.  Lots of hope lost there.....!