I, too, like mercer87 struggled with this issue; but I struggled with it in 1964 while in the seminary.
My impression then, and now, it that the theological justification that has appeared in various documents in the Roman rite are just that - justification, as opposed to explanation. Left out is any discussion of the fact that the Church for 2000 years has had both a married and a celibate clergy. It (the documentation) leaves one with the distinct feeling that Rome sees no way to impose mandatory celibacy on all rites, but would do so if they could (the documentation is notably lacking in any consideration that the Roman rite is not the only rite of the Church, and that the language used flies in the face of reality leaving one to consider that somehow, the Eastern rite traditions are somehow failing to meet the bar).
While I agree that the call comes from the Church, it helps to remember that the actual call comes from the Holy Spirit, but there is no guarantee the Church will respond.
It seems that the whole justification for celibacy only is that it started a long time ago in response to specific issues, and it continued for a long time, and somewhere along the line, rather than taking a total look at the issue - including the Eastern practice - what we had was a hardening up of attitudes with a complimentary justification for those attitudes.
I originally thought that there was an issue bordering on some old heresies, that sex was somehow dirty and those who were celibate were above such borderline sinfulness. What has struck me since, is the wonder if a goodly portion of this is fear based - fear, that if they (the celibate clergy and in particular those who justify or promote such justification) may actually be fearful of looking inward, and realizing that they are living lives of one charism - priesthood - while living lives without the other charism - celibacy. The two are completely distinct charisms and one can have one without the other.
And as an observation, I watched any number of priests leave the priesthood subsequent to Vatican 2 and get married.
As to the issue of sacrifice, I have personally talked with priests who feel that married people make far more sacrifices than they (the priests) do.
I do not wish to in any way denigrate celibacy as a charism that can be a tremendous witness. But I think that if the Church truly wants to lift up celibacy as a charism, that it needs to do so clearly and distinctly and I disagree that making priesthood celibate only does so. Those who have the charism should rejoice in it. And those who don’t should not be required to pretend they do.
For all the questions that are posed about a priest getting a divorce, how about the unasked question - the witness to marriage that a married priest can give?