Yes, because if it is not his/her self-interest they will not be able to work as hard as they can and won’t fully participate, while if they wanted to do it, they could go all out as it is something they want to achieve.
i belive the answer to be slavery
The answer is "the theories change to fit current data".
The meaning of a theory is a plan to clarify something, or
an arrangement of leading standards. In science a theory is an all around
substantiated clarification of some part of the common world, natural world, in
light of an assemblage of realities that have been over and over affirmed
through perception and examination.