You ought to try to not think in extremes and false dichotomies. Suggesting that we refrain from fully identifying and enmeshing ourselves in our work is not advocating an "anti-work ethic".

"Success comes from perseverance, not idleness or detachment."

Beyond the false dichotomy, how are you defining success? By discovering/developing breakthroughs that earn a place in history? Given how few those people really are, it's a pretty good argument against not bothering to even try.