[eigenvector]

The sad thing is that while I sort of understand from a business perspective why Google et al don't want to end up with a massive low-skill workforce that isn't directly relevant to their business, the number of security guards you need is directly proportional to your office footprint (i.e. you aren't going to wake up one day and find you've suddenly got more of them than you have tech workers). And I'll say the same for maintenance / custodial staff and food workers. Honestly, just pay all these people a decent wage - the impact on the company's bottom line will be a rounding error.