The only sector that could plausibly justify patents is biotech... but even there, the vast majority of early R&D is publicly-funded, and thus should negate protection.
A Government-mandated monopoly on ideas may have made sense at some point, but it's antiquated today. Today they serve to stifle innovation, extract rent and act as yet another form of regulatory capture -- e.g. when they become standards.
(Coming from someone who has 20+ patents to their name.)