He ALSO said, earlier in the chapter...
2 A bishop then must be blameless, the husband of one wife, vigilant, sober, of good behaviour, given to hospitality, apt to teach;
So; how many Catholic bishops are MARRIED?
Actually, being Orthodox, not Roman Catholic, I don't care to defend that church. Bishops married until the point in later centuries where the threat of corruption due to power hungry bishops being able to will property they controlled to their kids. At that point, the Church (Eastern for the most part -- Rome was more of a backwater) decided that restricting the bishops to monastics quenched that problem.
Since the Eastern Church has married priests (I am very glad for that -- we even have titles for them) I think the policy on bishops should be reversed but that would take a council.