@capt_Luffy
A dominant batsman puts the pressure back on the opposition attack, making it easier for himself and his teammates, as the opposition attack loses its control or some control.
A passive batsman though holds the innings together, he allows the opposition attack to settle and bowl better and more often than not get on top of you, putting your partners at the other end under pressure as they have to deal with more controlled bowling and also having to pick up the scoring rate. It works when other batsmen around that passive batter are able to take charge.
Enforcer vs Anchor
A team needs an anchor or two but dominant batters make life easy for everyone around them leading to relatively better outcomes for their team, more often than not.
For eg, Hayden and Ponting would destroy the soul of the opposition attack, (allowing the batsmen to follow to make hay and thus ground the opposition into dust). And you have to be a more skillful batter to be able to do that successfully and set it up for your team. A passive batsman is typically less skillful and has to 'rely more' on patience and perseverance side of things. And they typically need others around them.
Please realise that this is not T20/ODI or bazball type of batting we are talking about. Its controlled / calculated aggressive batting.