In this way, I would argue e.g. that
- the war on drugs is a detriment, having significantly increased the price and thus the profitability of drugs and fostered a cartel ecosystem that is now a large percentage of the economy (and often the government) of many countries.
- the war on terror or the prison system might be a net benefit towards the aim of reducing terror or crime respectively, but is a net detriment when taking its costs (monetary, social, freedom etc.) into account.