It depends on the workout really - A lot are for time/rounds that require full-out effort but a person's conditioning will determine their intensity. For example AMRAPs (As many rounds as possible in a certain timeframe), Fran (21-15-9 Thrusters/Pull-Ups).
Fight Gone Bad - well, some ppl strategize it while others just give it their all. There's an athlete that completed over 500 reps during that workout, so I can guarantee you that there was no gaming in that.
And like my previous post, I think CrossFit develops well-rounded athletes because the regimen does involve a variety of parts from multiple programs (oly, power lifting, gymnastics, etc...) - but you'll never excel at one specific ability simply because there is no focus towards it. "Jack of all trades, Master of none"