Fearless:

You list these goals:

Saving lives (a la Policemen, firemen, doctors, etc)
Protecting people (Policeman, military, etc.)
Serving the public
Serving the Lord
Being a moral and ethical person

These are wonderful goals. But are you saying that doing these would produce a chemical rush that is comparable to the chemical rush of real passion with a desirous woman? Real passion in marriage produces huge changes in the human body, which makes for probably the most pleasureable thing a human can do, I just don't see anything that can replicate that.