Your water supply definitely wants ethical companies.
Is it ethical for a water company to shutoff water to a poor immigrant family because of non-payment? Depending on the AI's political and DEI-bend, you're going to get totally different answers. Having people judge an AI's response is also going to be influenced by the evaluator's personal bias.
Ethics are all well and good but I would prefer to have quantified limits for water quality with strict enforcement and heavy penalties for violations.