Interesting that you picked out a screen capture from one social media site which on surface does not directly link this pilot to any airline or charter service, but simply references that he's a commercial pilot and on the side is a real estate agent.

If you are going to rail on a subject, perhaps pick a more egregious example. I don't see anything wrong with what that person is doing. We have something called freedom of speech, and if any private corporation tried to tell its employees they must withdraw from social media, then they would likely face a civil lawsuit, likely class action. Based on previous examples, these employees' lawsuit would likely prevail on the merits.

Corporations have every right to protect unauthorized use of their logos, uniforms, mottos, and trademarks, including termination for employees who would violate any such policies. But, again, I don't see any of that in the example you provided. Even blown up to full size, I don't see anything that associates that man with his company.

In conclusion, people should have freedom to engage in the hobbies and other ventures on their private time that they please and corporations should have nothing to say about it. I also take a dim view of cherry picking one example as you did and make heated comments without providing anything in the way of background to substantiate the inferences you make.