A company I interned for had an employee who allegedly dropped an F-Bomb or two during his interview. His nickname was F-Bomb. No joke.
When someone chooses to swear for emphasis or for the shock value, he is not trying to win over the people who might be offended, or who might take it as a sign of disrespect. He is trying to win over the people who buy into his personality, in spite of the people who may be offended. The whole reason he's saying "fuck" is because it will offend some people.
F-Bomb probably didn't want to work for a boss who would be offended at someone saying "fuck". Who would?