Historically the RAM industry has done the opposite (ramped up production aggressively due to high prices) only for that production to all come online during a glut.
This process can be fatal for a company as your expensive fixed investment hits a demand cycle that can turn overnight.
So it’s not about being a moustache twirling villain and conniving to keep prices high, it’s just not responsible or sensible to ramp up production massively based on a temporary AI bubble that could pop at any moment