I would just add that, each time you choose righteousness over crassness, the next time you’re faced with a challenge, its much eaiser. Its what is called in Rav Desslers writings as “your bechira point” (the line which you find yourself challenged)
I may not be tempted to knife someone, but boy am I tempted to slander a person who wronged me! But each time I control my temper, it gets eaiser the next time I’m faced with the same temptation.
Same thing with your example. Few of us are tempted to violate # 7 of the 10 commandments. That’ simply below our challenge point. The trick is to make inapproriate speech of the same topic just as out of bounds. Training and constant vigilance gets you to that point. We’ve all walked this path to some extent. You’ll get there too.