Reputation points are artificial and easily gamed. They're not a reflection of a person's actual reputation in a site's community. Being a participant in community moderation, including using the review queues, is how you actually get a good reputation in a site's community.
But the queues also show you a different subset of the site's questions that you see from the front page. They may alert you to other questions you could answer and then also get your little points from.