
I must admit that I am not a big believer in intrinsic evils. I think there are actions that appear to have no situation in which they could be permissible, but like Thomas Aquinas, I do not believe in intrinsic evils, per se, where the circumstances are never considered.
In any case, I think there is a gross misunderstanding of intrinsic evil as it is understood by many Catholics. ALL INTRINSIC EVIL MEANS IS THAT ONE NEED NOT CONSIDER THE SITUATION. IT IS NOT MORE WRONG THAN A REGULAR EVIL WHERE YOU CONSIDER THE SITUATION.
A case in point: Masturbation is an intrinsic evil by Church standards. It's wrong in all circumstances. The scourging an innocent man (such as Jesus) is not an intrinsic evil, but I think you would be hard pressed to find a moral theologian (who believes masturbation is sinful) who would say the former is a worse act because it is an intrinsic evil.
Something that is intrinsically evil could be worse than a "normal" sinful act, but the fact that it is "intrinsically" evil should not be used as the reason for it being worse. It's just bad theology.
A Faithful Catholic