Depends who 'we' are surely?

Your introductory paragraph highlights how any number of professions, groups of people in different society, actually thrive on paucity of definition. Politicians being the obvious grouping here who thrive on obfuscation, deflection and the development in lines of argumentation working to their agenda no matter the claims and calls to majority (define), popular will (define), and of course the here constant call on better value (for money).