行人: pedestrian, traveler on foot, passer-by, official responsible for arranging audiences with the emperor...
先生: teacher, husband, doctor (dialect), Mister (Mr.)...
而是: rather...
人格: personality, integrity, dignity...
换成: to exchange (sth) for (sth else), to replace with, to convert into...
甜头: sweet taste (of power, success etc), benefit...