Clearly, you don't have to be a utilitarian to accept beneficentrism. You could accept deontic constraints. You could accept any number of supplemental non-welfarist values (as long as they don't implausibly swamp the importance of welfare).
A combination of the words bitch and efficient. Typically used for a working woman who achieves maximum productivity with minimum wasted effort or expense.
noun: The noble, honest and determined search for knowledge and truth that can benefit all mankind especially where that search involves the application of scientific methods. It is the complete opposite of malignorance.
adj: benefiscient
A person who questions all 'facts' and remains open to all possibilities as they search for knowledge through the application of acceptable scientific methods and with the ultimate goal of enlightening mankind and improving the quality of life through their discoveries can be said to be practicing benefiscience. His contributions to the world are truly benefiscient.