Yes and no. What's different about sperm-cells is you would expect an "every man for himself" behavior. Instead, they recognize (?) there might be other competition, other sperm donors if you will, and they therefore co-operate so one of their own wins.
Does this mean monogamy is unnatural? Or at least at one point was not the norm? And still isn't? As why continue to optimize for co-operation?
Does this mean monogamy is unnatural? Or at least at one point was not the norm? And still isn't? As why continue to optimize for co-operation?