Rss2 x Atom Date problem

When a post is edited a few days later after it was published… Why is it that Rss2 always displays on a Feed, the original published date, and Atom displays the EDITED date??

I don’t like that a bit because if I write posts in different dates, I want them to be in order when you look at the actual Feed with the most recent always on top.

Post #4
Post #3
Post #2
Post #1

But if Post #2 is edited… Then ATOM (only Atom), displays it like this:

Post #2
Post #4
Post #3
Post #1

While Rss2 keeps it the way it should be.

Why does Atom do that and how can I make Atom NOT read the EDITED date anymore.. only the original published date.

If people read my Atom feed, then what I wrote doesn’t make sense if posts are all out of order.