That's fine. I agree 100%. I do everything I can to work smart. But at the end of the day, work hard or get lapped by someone who is willing and ready. Because even if I work smart, I still work hard. For example I work off billable hours. A partner at my firm sustained 16 billable hours a day for 3-4 days a week last week. He did so by multi tasking, working while driving to a client meeting, etc. either way, just in terms of boots in the ground he still out more actual hours in than any other partner at the firm, not to mention his astronomical billing.
Efficient work will get you far in terms of less job stress and personal satisfaction, but hard work gets you where you want to go 100% of the time.