The fact that it's hard to see is more an artefact of the wide view angle of the camera. When you're walking past on the ground it's much more obvious.

I thought about using a longer lens to get something closer to the human eye and emphasise the flag more, but I thought it better to show off the whole of the building. And it was just a very quick snap on my walk from the bus to the office, so I didn't have time to put too much thought into it.