Anecdotally salaries at the major tech companies just shot up in early 2011, which was soon after the DOJ started its investigation. It's hard to infer causation though, as this could have been because of rising competition from Facebook for employees, or it could have been because of the large amount of seed capital sloshing around in the startup world then, or it could have been because of the Fed's easy-money policies.
Connecting this to current events, this was also the start of SF's rent-and-eviction crisis. 2011 was when new grads started getting 6-figure salaries to work in tech, and experienced senior engineers started getting up to $250K/year in total comp. Turns out that when a large number of workers start getting big salaries in a region where the housing supply is basically fixed, much of that money goes into rent.