No one is ever wrong 100% of the time. No one is ever right 100% of the time. There is no one with the wisdom and knowledge of the whole world. It is our differences that make us better.
You will never be the best by having a team full of clones. When everyone thinks the same way, you have more gaps than you can plan for. Falling into the trap of thinking that there is only one right way is the quickest and easiest way to end up wrong.
Different cultures have different generic solutions to basic problems. None of those solutions is going to be better or worse generally. But the more options you know how to use, the better you can respond to varying situations.