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One of the hardest things I found in previous jobs is that, the manager or the CTO hired old college buddies, previous coworkers, or even girlfriend and girlfriend's brother in important roles.
They just knew that they had so much power and they could not be easily fired, and they started being arrogant and not responsive.
For example, if I wrote to them by email in 2, 3 sentences explaining the situation, they either do not reply, or reply with merely 2, 3 words.
Sometimes, they would not reply email and 2 days later, I talked to the person, and he said, "next time, come find me or IM (instant message) me!". Then a couple of weeks later, I looked for him in person, and he immediately cut me off with "send me email!"
And they also have an arrogant attitude, showing the feel that they are the royalty class, a group of high power. The CEO or the higher manager can be notified, but they will do the "wise thing" -- the CEO won't fire them because if some 35% of the company or the group leave the company, the company or group will be hit hard.
One of the manager's ex-coworker would even say, "The manager has to be a good manager because people follow him", and 2 minutes later, would say, "all the people who came because of the manager must be the best people, because the manager will only ask the best people to come over." So essentially, he was claiming openly that this royalty group was simply the best -- other people that is not this group might or might not be as good as them -- because the group had the best people.
Is there a proper way to deal with this situation?