By removing the natural consequence and potency of your actions, you deconstruct the judgment and will applied thereto.
I think anyone (particularly good Catholics who exercise restraint as a means of natural family planning) is well aware of the scientific proofs that sexual relations are more often than not "non-procreative".
Sex is ordered BOTH to that deeply intimate giving of self (the WHOLE self) to each other and -- by its nature -- is procreative.
As an example ... who is the stronger-willed man?
The fellow who seeks out disease-free and contraceptive saturated sexual partners so that none of his actions have any consequences and he can rut with the freedom -- if not the natural consequences -- of dumb animal sex?
Or is it the man who exercises the discerning and discipline necessary to limit his sexual union to a woman with whom he enjoys the absolutely full measure of giving and taking that is sexual union in no way divested of its natural potency?
As for your self-control "example" that is so typically full of judgmental condemning BS with no actual understanding of what goes on. The majority of people using birth control are not trolling the world looking for quick bangers, those people usually aren't bright enough to use protection (if they were VD and abortions would be history since it's the trollers that are the big transmitters). The majority of people using birth control are people in long term relationships, often within the bounds of marriage, who want to have a normal sexual relationship with the person they love, but they don't want some kid screwing things up; they're happy with how their life works childless and don't feel a need to change it at the whims of random chance.