Honestly, Jaire is probably the first guy in a while I wish you could extend him right away. Barring an injury the dude IMO has proven he is a #1 CB for nearly every team in the league...and those don't grow on trees.
While I get what you are saying, with a limited amount of cap each year, hitting pay dirt with a rookie contract should be celebrated. I don't feel "too bad" for Jaire. He was given $12,050,687 on his 4 year rookie deal and as long as he keeps playing the way his is, he will be making way more than that yearly and could comfortably retire at the end of 4 years if he had invested his rookie deal wisely.
All that said, seems like the way of the NFL player, even some on rookie contracts, is to threaten sitting out, unless their contracts are increased at the first chance they can. This is one aspect of the NFL I do not like. Sign a contract, play it out til the end at the terms you agree to. Yes, the Packers always have the option to cut a player, but they don't have the option to say "we were paying you $10 M this year and you played like a $1M player, you owe us $1 M.