Religious are thought of these days as being 'asexuals' (or infamously homosexuals- a whole other topic) and so they are thought to be sexless, (or infamously thought to have sexual problems) but this is not true.. They are by vows to give sex up, they freely give that up, its not all they give up either. It doesn't mean that they are without sexual desires... in fact, I'm pretty sure your sacrifice is useless if it wasn't a sacrifice to begin with. If you hate potato salad, never eat it, and vow to give up potato salad the rest of your life, you really did nothing for the sake of 'sacrificing', now did you? According to the Bible, that kind sacrifice means nothing to God. Taking a vow of celibacy is a sacrifice because it goes against natural inclination. Also choosing married life and having kids is also a major sacrifice.... but this issue of sex has very little to do with the sacrifices made within each vocation/vow made. Its more about one's calling or function or place in the Body of The Lord.
If having sex is choosing less than what God prefers as you put in in your conclusion, then why would God say 'be fruitful and multiply" in Genesis? Why would Jesus preach about marriage in general if it wasn't something He prefers? Again, I say it not a matter of sex, but a matter of what God wills for that person.... i.e. bringing into the world, new saints. We can't split the faith walk into "everyone should walk in this particular way", because as Scripture explains we make up a body- the eye is not the same as the hand, the foot or the heart... We all have different functions, but serve God. Its not 'cookie cutter cut outs'. Many try to see it that way, and grow spiritually abnormal because of that view.