Is it the same as the cleaning lady?

We sit in talks with the leadership of one of the companies. Well, since the conversation was about IT, then they called their own either a sysadmin or an enikschik.

The boy came, pleased that he had been invited to negotiate, was trying to talk intelligently. But how it came to money and other business things, so he was immediately asked to leave.
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The director looked into his eyes and said to him: “Well, well, stay and listen.”

I remembered this incident just as I thought that the IT audience does not want (???) and does not understand the business audience, and the business audience does not want and cannot (!!!) understand the IT audience.

Maybe this is normal, or is something wrong in our (IT) kingdom?

Maybe if IT students learn a little about the business sense of what they are doing, then there will be more sense? Although, if you look more broadly, is it not necessary to understand business from specialists on telephones, alarms, electrics?

So ITshnik is not a business man?