Walmart purposefully designs their pay structure to externalize their labor costs to taxpayers.[1] They have gladly led the way in lobbying for offshoring manufacturing jobs.[2] They do everything they can to avoid paying taxes and bust unions.[3][4]

They will burn a small town's economy to the ground so they can turn a profit selling goods produced in sweatshops and labor camps. If that's not evil, I'm not sure what would qualify.

[1] https://www.gao.gov/assets/gao-21-45.pdf

[2] https://www.sourcewatch.org/index.php/Walmart#Walmart_is_a_D...

[3] https://qz.com/1701404/walmart-allegedly-created-fictitious-...

[4] https://www.cbsnews.com/news/union-walmart-shut-5-stores-ove...