The church fathers, such as Thomas Aquinas, put the intellectual virtues above the moral virtues - including chastity (which is not the same thing as celibacy). These were smart men and they had a lot of experience with human nature (which is why Donald Trump's comment about "grab her by the pussy" is merely adolescent bad taste and nothing else).
My experience has confirmed their observations. Think of the old saying, "The road to hell is paved with good intentions." Most of the "evil" in the world is not done by actual malice, but by those with good intentions gone awry.
Those who do things for "moral" reasons generally are self-righteous, and those who are self-righteous always think they are right. That means they think those who disagree with them are always wrong. Sometimes that means they believe you can't make an omelet without breaking a few eggs, which include people's lives.
Thomas Sowell once wrote a book called, The Vision of the Anointed. His thesis was that those who think they are anointed think they are so intellectually and morally superior to the unwashed masses to they think this gives them the right to rule them and move them around like chess pieces. But more than anything else, they think they are more moral than everyone else.
In reality they are neither smarter nor more "moral" than anyone else. These days these people are called "leftists." Such people lack humility, which more than anything else means knowing your limitations.
People who don't know their limitations suffer from Hubris, or Pride, or what Russell Kirk called "the Monstrous Self." Call it what you want, but it is the worst sin of all and is the basis of all the rest such as envy, greed and gluttony. At their worst they end up as Pol Pot or Stalin or Hitler, all of whom were intellectual mediocrities but thought they were more moral than everyone else.
All of them were authoritarians but lacked true authority.
Because these people think they are "godless self-gods" they usually are atheists and in fact hate religion and would like to eradicate it (think of Barak Obama claiming the unwashed masses are "clinging to their guns and religion" - and he meant the inbred hillbilly Nazis in Flyover Land).
Does anyone really believe that Hillary Clinton or Barak Obama or either Bushes are smarter than they are? It really is true - anyone can be President. No matter how ignorant and stupid and destructive.
Martin Luther once called the world "the Devil's Inn" and the Bible clearly states this world is ruled by Satan, who is always walking to and fro up and down in the world and obviously having a damned good time doing it.