<p>Some <a href="http://bricks.stackexchange.com/help/privileges">privileges</a> are awarded to users based on their reputation. In this case, starting from 1000 rep, users get the <a href="http://bricks.stackexchange.com/help/privileges/edit">Edit questions and answers</a>" privilege, which means that their edits don't need to be approved any longer.</p>

<p>Also, they don't get the <a href="http://bricks.stackexchange.com/help/whats-reputation">+2 reputation bonus for an accepted suggested edit</a> - note the "(up to +1000 total per user)" in the bonus for editing. Their edit isn't considered to be suggested anyway, since it's accepted automatically.</p>

<p>So yes, you're correct to say it usually doesn't matter that much for users past a certain reputation point, and that's what's built in the system. You can find more information on this on <a href="http://meta.stackexchange.com/questions/82020/why-is-there-a-limit-on-edit-reputation-reward">the main meta stack exchange site</a>. In short, reputation is supposed to cover good answers and questions; editing isn't the focus.</p>

<p>One point to keep in mind is that it prevents reputation farming through editing: since your edits are auto-accepted, you could get reputation with just "editing" posts even if your edits aren't interesting. </p>