Some thoughts on this.
How do we know who is disrespecting whom without knowing what each side is demanding? If Dak is asking for $40 million then its on him. He is not worth $40 million and he is being unreasonable if this is the case. If Dak is asking for $35 million and Jerry is balking at that, then I think Jerry is disrespecting Dak. He is saying Dak is not really the franchise QB Jerry proclaims publicly. But we don't know what each side is saying so we cannot judge who is right or wrong.
A franchise designation does not mean Jerry is disrespecting Dak. I could just mean he does not want Dak to leave. If there is no agreement (see my first point), then Jerry has no choice but to put the franchise tag on Dak. Jerry cannot let Dak get away because he has no other option at QB. Dak leaving sends this team into disarray.
From Jerry's point of view, its more complicated than what Dak is worth. Jerry has to keep his other free agents in mind. If he gives Dak $40 million then Cooper may ask for $20 million. Jerry has other free agents that he may want to sign. He wants fair deals from everyone. He wants to keep his team relatively intact and also leave room to sign Free Agents to improve his team. If there was no cap, I am pretty sure Jerry "money bags" Jones would give Dak the $40 million and get this done. Its easy for guys on the radio to spew nonsense when they don't have to worry about 53 players.