I think the way the OP's post is worded is a bit close-minded in terms of thinking that "satisfaction" has to come in the form of an orgasm and cumshot right then and there. Though for him that may be the case, I think for many of us, or at the very least myself, there is a dual satisfaction that occurs by taking loads and not getting off until later, especially if you take several in a night (or longer!). Even for the guys that are are into chastity, there is clearly some sort of satisfaction for them-- if there wasn't, they wouldn't willingly be doing it.
As a personal example, when I was living in NYC where it was very easy to find more than a few guys to breed me in a single night, I would often either only slowly and gently stroke my cock while getting reamed, building up as much tension as possible without actually getting off, or, preferrably, wearing a jockstrap and massaging myself with my hand-- built up so much pressure but couldn't make myself cum unless I pulled my cock out of it. After I finished up with the guy, I'd head home and get right back on BBRTS or A4A and find another guy to fill me up ASAP. After a few times, I'd either decide this particular guy was going to be my last for the night and edge myself until he cums and unload myself, or, the more usual, just go home, toke on a bowl, shove in a plug and beat off furiously, thinking about how much seed there was deep inside me.
For me, doing this made my final orgasm at the end of the night 100,000 times more powerful and amazing than it ever would be if I just got off while getting fucked. The longer you wait to get off, the better it feels when you finally do. Though I love a top to tell me he's just using me to unload and doesn't care if it feels good or not because I'm just a slut, the simple truth is that as long as I get his spunk in my ass I'm using him just as much as he thinks he's using me.