The victim isn't just Facebook, but the company and people whose identities he stole. How would you feel if someone used your name, company, and email address to run up $300k in credit, and a company then came chasing you for payment? Imagine the damage that would do to your/your company's credit rating if they reported it without your knowledge, etc, and all the hassle in resolving it?
Where do you draw the line, can I steal someone's identity, trash it, and move on to the next one?
Then of course there's the $300k that Facebook is owed.
Are you the sort of guy that thinks that it's cool to walk into Walmart and steal a bottle of vodka? That because it won't cripple the organisation, it's perfectly acceptable? That the person shouldn't be punished?