Question

Hello Rabbi, I remember that once you wrote about this issue, and I also heard it from you in a lecture: that in your view, a person with special abilities and the capacity for perseverance in an area where he can be very beneficial ought to invest in that, even at the cost of giving up on establishing a home and getting married. 
The model (which I don’t recall you mentioning, but it immediately comes to mind) seems to be the model of Ben Azzai, who did not marry because his soul longed for Torah. 
And my question is this: does the Ben Azzai model also apply to areas that are not connected to Torah study? What about the words of the halakhic decisors who say that nowadays no one can claim to be on the level of Ben Azzai and thus exempt himself from the commandment of procreation and marriage? 
And in general, why do we not find throughout the generations—aside from Ben Azzai—examples among the great sages of Israel, those who invested all their energy in Torah, who refrained from marrying because of their unceasing involvement in Torah? (The only case that may be an exception is Rabbi Weinberg, author of Seridei Esh, who after a short marriage divorced and did not remarry.)