O'Malley is committed to furthering his career.  He's in good with Francis and is doing a stellar job of making sure his commission does nothing that might result in a cleric being held accountable for abusing a child.  The other cardinals will appreciate his effective duplicity.  With luck he can parlay it into a higher position, maybe even Vicar of Christ.  Most importantly, he is doing God's work, improving the reputation of the Church and keeping the membership numbers in as good shape as possible.  Jesus may not have endorsed whitewashing the exterior of tombs, and He seemed to feel harming children was bad, but fortunately for the good cardinal and his brethren, centuries of tradition have reversed Christ.  Harming children is acceptable, provided one not get caught, and the tomb gets a fresh coat of whitewash regularly.