Hello Near,
I do not think that remaining single or getting married should affect AYP. Yogani, I believe is married. But marriage shouldn't be based on yogic practices unless you want to go meditate in a cave for the rest of your life. Marriage is something that you do because you know that it is right for your relationship with your partner.
Marriage is a true sacrifice. If it is to be successful then there is alot of giving and sacrifice. It is about unconditional love, and like you said it should make you less selfish, which does your soul good.
As for the Tantric aspect. Having a partner or not having a partner shouldn't matter much. You still control your seed - if your partner is willing.
As for your salary, well... you will probably have less control of it if you want to keep everyone happy....
Really, only you can answer if marriage is right for you. Meditate on it and see what your higher self tells you. Like Yogani says "the Guru is in You". AYP works regardless if you decide to marry or remain single. Have I confused you yet?
With Peace and Respect,
Paul