Charles, you are indeed correct, and my blunder an important one. By receiving wages over the value of their labor power, some workers may indeed only be reducing their rate of exploitation, not receiving all of the surplus value which they produce--this may be the case with the great majority of Boeing engineers and technicians now on strike. Perhaps it's imaginable that in a tech monopoly the capitalists primarily live off the extra surplus value while a few workers do and can (due to skill scarcity) lay claim to all the surplus value they have produced (a $120,000/yr Boeing senior engineer?) If this is true it seems not to be true of very many workers at all.
It's interesting however that what seems to have moved the engineers and technicians into action is the bonus plan machinists won. One hopes that this is not an attempt to maintain proper distance between intellectual and manual labor.
Yours, Rakesh