The Waltons wouldn't change and so their business crumbled around them. In an era of power of the individual it is very bad to treat your employees poorly and investors know that, as they pull out.
In January, 2015, the family was worth $143 billion. Since then, the family has lost $83 billion. A recent release stating that the company would be losing profits for the next three years turned investors away. The company's stock value has depreciated roughly 30% in the last 12 months.
This is bad news for a company that notoriously pays the average associate employees $8.81 an hour, but good news for workers' rights committees. Walmart's profit over people behavior is showing as they are collapsing