The Devil in the White City Part Two

So the second part of the book is almost the same as the first part. Larson is just contentiously building up the plot through vague actions that will all come together in the big finale. I actually thought it was really cool how he references Walt Disney for what seems to be no apparent reason, but just for that cool factor and fun fact for the reader. The Holmes is all interesting, absolutely messed up in every way, and makes me wish I could pick up girls like that. But without the slitting of throats, skinning them, admiring their dead bodies, sex, or gassing them to death.

Back on track to the main idea of the book and it's white city, with its upcoming failure of a world fair, are the many relations to the problems of society in that time period.
The constant struggle for power is shown between Burnham and Davis. They both wanted complete control of the fair but Burnham eventually was given all rights to it for better or worse. This power struggle could relate to the United States as a nation struggling to the top of the economic food chain, the election of government officials, and just the people of America such as Holmes who excels at it a little too much.
The fair also related the growing role of women in the society in the building that was erected in the name of women.
The Labor Union person that wanted there to be a building for the poor working class, showed the growing support/pity for labor unions at the end of the century as said in our QUEST.
American growth in technology and innovations is also portrayed in the passages about Ferris and Edison.
Destruction of wild life in America and Native Americans is also referenced to in the destruction of Olmsted's pure wildlife island.

Questions:
Why were the buildings so easily destroyed by bad weather? Wouldn't they have fixed natural disasters such as those by this time period?

Why did they house workers in expensive living conditions and give them food? When the head of the fair's creations could have just taken those luxuries away or lowered the pay of the workers.

Why is Ferris's wheel rejected the first two times but finally accepted the last? Even though the concept was exactly the same.