I don't have a problem with a company not making a profit as long as their revenues are growing quickly. The perfect example of this is Amazon. They usually don't post a profit or if they do it's a very small one.
The reason that happens is because they spend heavily on opening up new distribution centers to decrease shipping times, and also on discounts and other forms of acquiring new customers like Amazon Fresh, Amazon Prime, Kindles, etc.
If Amazon decided to stop doing all those things, they would generate billions in profit every quarter, but they wouldn't remain dominant for long if they did that. This is why Amazon is likely to be around and dominant 30+ years from now, whereas other companies that just want to return money to shareholders won't be.