There is widespread, often reasonable disagreement about what middle class means, either in terms of salary or total assets. Or cultural practice. It's true, p

There is widespread, often reasonable disagreement about what middle class means, either in terms of salary or total assets. Or cultural practice. It's true, people do under-acknowledge other industries - law, finance, medicine. http://www.sfgate.com/business/article/Tech-isn-t-biggest-S-F-industry-health-care-is-5899525.php http://www.sfgate.com/business/article/Tech-isn-t-biggest-S-... Average SF health-related salary in 2014 - 67k. "The industry employs 20 percent of the city’s workers, with nearly 122,000 jobs. The average annual wage across all jobs in the sector — from pharmacists to surgeons to genetic counselors — was $67,410." When does health stop and tech being? Often it's a fuzzy line.