Perhaps! But then you'd get to file a lien on Microsoft, and what a glorious day
that would be. Frame it for the office wall!
The point here is that, if we don't exercise the tools available to us to have a human being judge whether Microsoft's behavior is unjust, then we'll never know if a human being would have judged Microsoft's behavior (and terms of service) as unjust. Is LinkedIn summarily destroying one's 'Rolodex' an unlawful act, regardless of whether their boilerplate permits it? One could easily speculate that LinkedIn's terms are a one-sided contract with intolerable terms that exclusively benefit themselves to the harm of the other party, and a judge might well agree if presented such an argument. We'll never know unless people try, though :)
ps. Not particularly relevant, but it came up in research, so:
> Jaffe was asked by defense counsel, "Did you care how he obtained it?" and he answered, "I don't recall thinking that at the time, no sir." Defense counsel then asked, "... all you wanted was the information, and you did not care how it was obtained?" To which Jaffe responded, "Well, I certainly didn't expect him to murder anybody for it." TRM 161. Casper testified that when he handed Jaffe the rolodex file stolen from Wolstencroft's desk Jaffe "was rather elated."
— United States v. Payner, 434 F. Supp. 113 (N.D. Ohio 1977) footnote 34