[sinaa]

The core value of code reviews is knowledge transfer and increased harmony across the codebase.

You certainly don't want to work in a codebase riddled with different ways of doing the same thing. Code reviews help with making the patterns more structured and more widely adopted. It also helps everyone at all skill levels to learn something from their peers, through reading their code and sharing thoughts.

It also makes more people in the team familiar with the codebase, such that more people are capable of changing and improving the related parts rather than just the original author.

The potential benefit of finding defects is only a nice to have!