Are they convinced that a more muscular re-investment in their businesses won't provide returns greater than interest?
Is there a tax advantage here that pushes companies to hoard?
Is the C-suite set really worried about the greater economic environment going forward and so want these cash piles as a buffer to get through coming lean times?
Wikipedia suggests its toxify is overblown. https://en.wikipedia.org/wiki/Lead(II)_chromate
>Despite containing both lead and hexavalent chromium, lead chromate is not particularly toxic because of its very low solubility. The LD50 for rats is only 5,000 mg/kg. Lead chromate is treated with great care in its manufacture, the main concerns being dust of the chromate precursor. "Extensive epidemiological investigations have given no indication that the practically insoluble lead chromate pigments have any carcinogenic properties".
Has many advantages over RCV / IRV (Ranked Choice Voting / Instant Runoff Voting). For one - no need to change ballots; educating the public is a single sentence rather than a more-complicated explanation.
They all have different strengths and weaknesses. We should be trying to move to more optimal systems.