The rejection of much of what Christians believed regarding Faith and Morals. 
Abortion, contraception, divorce and remarriage, co-habitation, sex outside of marrriage, homosexuality are now accepted in society. The same with lying and cheating as long as one gets away with it and especially against the State or large Corporations. These things always went on but were recognised for what they were, wrong, sinful. No longer is this the case.
What is wrong with obedience? Obedience is submitting ones will to the will of God out of love of God. The most sublime example of this is Christ bowing to the will of the Father, "Not my will but Thine be done."
St Paul tells us that, "Christ became obedient unto death, even the death of the cross, because of this God exalted Him and gave Him a name which is above all other names."
Why is it different now? Do we no longer have to obey the will of God? How else would we know the will of God except through the His Church?