What does all of this mean?!!

Notice that world-famous traitor to the Crown?! Why yes, it is a statue of George Washington in Trafalgar Square right in front of the National Gallery. Why is he there?!!


Then you have on the other side of the Gallery, a statue of James II. Why do you put a statue of the king you deposed and asked his daughter and son-in-law to come rule in his place (William and Mary) in such a prominent spot?

Then the confusion just grows because they have a statue of Charles I (just off to the bottom left of this pic - he's on a horse) whom they beheaded?

Is this the 'British' way of doing penance (we're sorry Charlie for cutting your head off - here's a statue)? Or are these just memorials to the 'Great Traitors of the people of Britain'? I just don't know...