Why are so many Vatican appointees at odds with Church teaching?

Four recent appointees to the Pontifical Academy for Life have broken with the Church on the immorality of abortion and/or artificial contraception. Critics stress that given the weight of moral teaching of the pope and of the authentic magisterium, what is deemed “intrinsically immoral” (always sinful: abortion, contraception and same-sex acts) “cannot be objectively justified under any circumstances or for any good intention.”