Sète, a contrating city ?

Sète is a town located in the South of France, near the Mediterranean sea. I have been there regularly for fifteen years, and I love this town. It overflows with colors, with smells and with very different people. On this photo, we can see the heart of the town crossed by "the canal". There are a lot of  "town's houses". In fact they are stuck together. I love this place, in my opinion, it's  charming. I wish I lived in a little house, pink or blue as they are.

But, when I look at this other photo, I don't say the same. In my point of view, these factories are very ugly and they ruin all my little dream of Sète. It's a gloomy and  greyish place. I don't understand why there are such places which deteriorate the beauty of the town.