expediency GRE

an ambitious politician, guided by expediency rather than principle.

一个有野心，常为自身利益而不是原则来指导

It tends to be disposed of by adding moral coloration to actions that are really motivated by expediency, and an expediential coloration to actions that are motivated by moral and humanitarian values.

它倾向于增加道德著色（色彩）来处置，是真正被权宜之计所激发行动，而一个权宜之计著色（色彩）是由道德和人道义价值所激发行动。