The goal of any intelligence will be to maximize rewards (R. Jones, Skeptic, vol. 12, #3, pg 14, 2006 and the work of P. Werbos and R. Sutton). This is also true of an intelligence which is doing nothing but science. Some value system defines and measures the "rewards." Science can't be value free. If it were you couldn't decide what theory to believe, what experiment to do next, or even what to think next. Of course, some of what you value might well be things like logic, evidence, consistency/coherence, etc.
(see also my blogs of 25 Oct. 2011 and 1 Sept. 2012)