Meanings of legitimately concerned in английском

Is that something that people should be legitimately concerned about?

I was sure she was legitimately concerned for me.

Mr Ramadge said the information had been brought to The Age by a legitimately concerned whistleblower.

There are people who are legitimately concerned.

You sound like you've... really looked into this, I said, wondering for a moment if I should be legitimately concerned.

He also began to remember that pistol-shots are sometimes serious things; accompanied with consequences with which he was legitimately concerned.

Yovanovitch calmly refuted an argument by Republican counsel Steve Castor that Trump was legitimately concerned about influential Ukrainians being "out to get the president."