What we visit, what these places were (vs what they are)

We visit Rome's Roman Empire vestiges, where a lot of monuments celebrate major war wins where not only soldiers were killed. The Triumph Arc of Titus for example celebrates Jerusalem's battle. 1M death (70 000 soldiers were involved in the battle only. It has been a massacre).
The Colosseum saw thousands of people dying. Even more animals.

We visit Versailles and other royal castles. These buildings are the result of extravagant spending made by an oligarchy letting most of the population they were ruling living in very basic conditions.

Is it really a good idea?
Yes, they are old and beautiful things but should we skip what they convey?
Or should we skip what happened hundreds years ago to enjoy the beauty of the monuments?
Should we celebrate that these monuments are now associated to positive sentiment, that they know "belong" to tourists?
Or should we regret that aesthetic of things and the endless and frenetic quest of beautiful things to see overcame the meaning of things?

PS: I was about to wrote "We visit Cairo Pyramids..." as I thought they were built by slaves but checking the info, it was quite wrong ;) I was also about to write "We visit the Great Wall of China...' as I thought it caused millions of death that were buried in the wall itself. Guess what, it was a wrong info again... dead bodies are very bad fondations so experts say that if the wall is still there, good chances fondations are not dead bodies that are not solid things at all ;)