When should a company be left to die? I wrote about dying companies last week in the context of ESG investing. ESG (environmental, social and governance) investors punish companies for doing antisocial things. This they do by refusing to invest in them (or, by investing less).  I wrote about the way ESG investors’ decision not to buy shares in British American Tobacco (LSE:BAT) results in fewer cigarettes in mouths. When deciding whether or not to invest in a new project, BAT refers to the share price. The lower the share price, the harder it is for BAT to justify spending money…