So if over 50% work for the government...it's pretty common sense that those who work FOR the government...are going to believe in MORE government.
Over 50% now? A moment ago it was "upwards of 50%", i.e., as many as 50%.
If their analysis points to more government, that's what they'll come up with.
Economists are professionals who presumably do the best job they can at describing to their employers what they find the situation to be, what options their employer might consider to deal with it, and the possible consequences of those options.
Economists are analysts, not decision makers. They evaluate and, if asked, advise. Their employer wants the best evaluation he can afford so that
he can make an informed decision. If the evaluation is "we may need more government", they will express that. If their evaluation is, "This program is a burden to ___ and is hindering expansion in this sector of the economy," then that's what they'll report. Analysts are black-and-white thinkers. They may have political opinions, but they're not, as a group, politically motivated professionals.
If your position is that economists who work for the government favor big government because it makes for more job openings for economists, then you're doing the entire profession a disservice.