This is certainly churlish, but it's not at all "the libertarian creed". People who break rules just for the sake of breaking them aren't libertarians, they're idiots. I agree there are lots of those around, and that many, if not most, people who crow about "breaking rules" are doing it for selfish or irresponsible or self-aggrandizing reasons. But those people aren't libertarians.
The libertarian creed is that there are different kinds of rules, and you treat them in different ways. And one key part of that is precisely the "moral concern" that you talk about. Libertarianism includes the non-aggression principle: don't violate other people's rights. (Some, including me, would say that's a bedrock tenet of libertarianism.) If breaking a rule would do that, you don't break the rule. And indeed lots of the rules we have in place in our society are there for that very reason--because breaking them would mean violating someone's rights. That doesn't just include obvious cases like the laws against things like murder. It includes rules about fiduciary responsibility when you're taking care of other people's money (someone mentioned Paypal upthread). And it includes norms that aren't codified into rules, like "don't take your users' data without their consent or even knowledge, and then sell it for profit". Doing it at scale to billions of people, as tech giants do, doesn't change that, and "libertarian creed" isn't a get out of jail free card.