have no conscience about something—have no scruples about smth. morally wrong:
- They have no conscience about the plight of the poor; and although they talk patriotically, they treat the country like a colony to be exploited.
have something on one’s conscience—feel guilty about smth. one has done or failed to do:
- And now he had Jergensen’s death on his conscience. The man had stolen a television set—for all Boldt knew that was the full extent of his crime.