The median annual salary of Facebook employees is as high as $263,000 (about Rmb1.7m), according to regulatory documents. While it may seem like a smartphone app and a website, the group's technology and software stacking are as complex as any company's. Incredible profits provide them with a huge research and development budget.

As a result, Facebook not only offers high salaries to its employees, but also allows the smartest engineers to put their talents to the fullest, with the full support of its boss, Mark Zuckerberg, who still considers himself a technocrat. Sometimes, many employees make radical statements on a variety of topics. But generous salaries, abundant resources and smart colleagues still bring together enough top resources for Facebook.

Opponents of tech giants want to weaken their market power and prevent them from squeezing the living space of innovators and disruptors. Network effects have also been belatedly included in the discussion, but the focus remains on the user level. However, academics and regulators should also look at the subtle cyber effects that make Silicon Valley companies so strong in the tech labor market.