Industries
An industry page is a hub. It lists the occupations tracked inside that industry and counts which covers those occupations most commonly carry, so the ordering is evidence from the graph rather than an opinion.
Industries differ in what drives their exposure: a trade damages property, a consultant gives advice that turns out wrong, a carrier loses goods that belong to somebody else. The covers follow from that difference.
Why industry and occupation are separate
An occupation is what a business does; an industry is the group it sits in. Keeping them as separate entities means a trade can be counted in one industry while sharing covers with occupations in another, without duplicating either page.
Statutory schemes attach to jurisdictions and activities rather than to industries, so scheme requirements are shown on the occupation and scheme pages where they can be stated precisely.