Earlier quoted context omitted.
"Tech" is not an industry per say, it's a medium for delivering business value. Straight from the horses mouth: Mark Zuckerberg Finally Admits Facebook Is a Media Company http://fortune.com/2016/12/23/zuckerberg-media-company/
Tech is indeed is an industry. Look at it this way: Big law firms are called that because they hire a lot of lawyers (and lawyer-types); big 4 accounting firms hire a lot of accountants and big 5 tech firms hire a lot of software engineers (or CS majors if you will). They are called that not because they don't hire HR, IT, finance or other professionals, they are called "big X" because specific professions (lawyers,…
If a bunch of accountants just invested in tech companies they would be a VC fund not an accounting company.