Let them treat employees like cannon fodder. Some of those employees might end up creating something new and innovative, rather than building another product that gets eventually dead-pooled by Google, or copy-pasted by Meta.
My three would be:
1. Relatively weak labor protections in the USA.
2. The fiduciary requirement to maximize shareholder value. Why not allow a company to define its own metric, such as a blend of profit along with employee treatment (or others, within some notion of reasonableness*), make this metric public, provide some sort of accounting and accountability for it, and let shareholders adjust accordingly.
3. The quarterly reporting of public companies. This makes long-term planning and investment much harder.
* I haven't studied this very broadly. I'm familiar with the Triple Bottom Line and B-Corporations.