self-satisfied
adj
(derog贬) too pleased with oneself and one's own achievements; smug 沾沾自喜的; 自鸣得意的
a self-satisfied person, attitude, grin 得意忘形的人、 态度、 傻笑.
In times of peace, when business was bad, Hawkwood and his men would march into a city-state and, after burning down a few farms, would offer to go away protection money was paid to them.