Exactly. The sheer number of employees CRM is hiring, month after month, is staggering.
Why the down votes? They've nearly doubled the employee count in a couple of years, which is quite impressive at that scale.
The chart you posted was about revenues not profits. Same argument applies to Amazon also but they are at least making some profit. The strategy of pursuing revenue and growth only makes sense for so long. At some point you have to cash that user base and make money.
The chart is about revenue because, as I stated, they are clearly not pursuing profit. I suggest viewing a 10-year graph of their share price to see what investors think of this strategy.