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My Master used this all the time with me as a means of control/reward/punishment. I was never to orgasm without his permission, and permission to orgasm (our relationship took place mostly online, so a lot of the time, when I had permission, it was to orgasm for him via video chat, or I was to record a video of it and send it to him) was often given as a reward, or denied as a way of punishment.
But really, a lot of the time he denied me orgasms because I enjoyed it. Even before I discovered my submissive leanings, when masturbating I would deny myself (well, not entirely. Let's call it a long delay) and found that it was more of a turn on than just going for it.