Answer:
Conformity
Step-by-step explanation:
Conformity
This is simply refered to as the act of being involved or getting along with a group inspite of one's personal or real opinion. It is often known as a type of social influence that is the act of altering or changing a belief or behavior in order to fit in with a group.
If the issue with Vince was compliance, then the case would be only if someone had asked him to voice an opinion in keeping with the previous speakers. But in this scenario, Vince did it on his own will that is as a result of internal pressure to conform.
The various factors that influence conformity includes culture, groupthink, Risky shift, minority influences etc.