If they actually made that policy, that they will buy any <500k widget that promises the world, then I bet the market could churn out pseudoscience at astonishing rates.
The market already churns out an astonishing amount of pseudoscience. You don't need any special policies from big corporations for that. Magical thinking is one of those human things that seems to be deeply ingrained and requires sustained effort, practice, and training to avoid. Science and scientific thinking does not happen on its own. No one is born a scientist.