Roman Catholicism, at least before Vatican II, did have a less sympathetic view of sexuality than Eastern Orthodoxy, e.g. the Western Church followed St Jerome in treating sexual pleasure as intrinsically sinful, while the Eastern view was that it was not sinful in itself, just as no pleasure is sinful in itself. They also required all priests to be celibate, in contradiction to ancient tradition.
However, it is also true that the life of virginity and monasticism has indeed been considered the highest path for Christians, and this tradition goes right back to St Paul. Why do you think we require our bishops to be monks? Marriage is honorable and a type of Christ and the Church, but it is wrong to say that we give it the same status as monasticism (which is, of course, a kind of mystical marriage between a monk and the Church, or between a nun and Christ).