I've noticed that there's quite a few of these. It's almost like Weller was reluctant to release songs from the albums as singles. Actually, I'm pretty sure Town Called Malice was the only Number One Single that was released that was also on an album. If you look at some of their 2nd and 3rd place singles, they are also often non-album tracks, ones like The Eton Rifles, When You're Young and Strange Town.
Obviously, it's not a hard and fast rule, but it does show the singles don't always tell the whole band story!