Betterment

…

When men of science envisage a possibility of this kind, they are prone to a type of fallacy which is common also in other directions. They imagine that a reform inaugurated by men of science would be administered as men of science would wish, by men similar in outlook to those who have advocated it. In like manner women who advocated votes for women used to imagine that the woman voter of the future would resemble the ardent feminist who won her the vote; and socialist leaders imagine that a socialist State would be administered by idealistic reformers like themselves. These are, of course, delusions; a reform, once achieved, is handed over to the average citizen.

—Bertrand Russell, ICARUS or The Future of Science, 1924

And the average citizen, distracted by more immediate concerns, willingly passes administration of the reformed matter over to all the same people who cared enough to fight over the reform in the first place.