> companies actively campaign against legislature which increases wages, so it's not that they are just ignoring the welfare of their workers they actively push against it.
That's not true in the case we're discussing though. Walmart often campaigns for increases to the minimum wage, because they know it will hurt their competition.
Walmart has (recently, as far as I'm aware) began lobbying for it because they know they can absorb labor costs more readily, sure. But the largest business lobbying group in the US advocates against raising the minimum wage, pushing back against workplace safety, and other work welfare initiatives: https://www.uschamber.com/labor
That's not true in the case we're discussing though. Walmart often campaigns for increases to the minimum wage, because they know it will hurt their competition.