Don't forget that cc helped the Company out by agreeing to 'a temporary reduction' in crewing levels post 9/11, the temporary part of which the Company have now conveniently forgotten about.
On a 747, you therefore do 1/16th more work and on a 777 1/13th.
Simply put:
The Company have saved between 6.25 and 7.69 % on longhaul cc labour costs already, without you having to work even longer, harder, or more efficiently.
Next time flight crew have a whinge, ask them when they last helped the Company out in this way...