Obv Lincoln

What’s this all about?
Looking at coins, Lincoln is the only president looking the other way from the rest of the people on the coins… Also, he’s the only person on a different colored coin… Why is that? (except for the dollar coin, because there are too many different designs… the nickel only has one other design, but that wasn’t until 2005…)
[Quarter]
http://z.about.com/d/coins/1/0/j/0/-/-/Rust_Quarter_Filled_Die_Obv_400.jpg
[Dime]
http://upload.wikimedia.org/wikipedia/commons/8/84/2005-Dime-Obv-Unc-P.png
[Nickel]
http://www.usmint.gov/historianscorner/images/keelNickelProof_obv.jpg
[50c]
http://www.freemanmagic.com/images/176e-Jumbo-3-Inch-Chrome-Half-Dollar-Coin.jpg
[Penny]
http://scrapetv.com/News/News%20Pages/Business/images/us%20penny.jpg
Doesn’t this strike anybody as “odd”?
Because Lincon was said to be the most wise president, so they wanted to differ him from the rest.
bedroom intruder