And yet Jack Welch somehow came to be looked upon as a management guru instead of someone who gutted the long-term viability of GE in favor of financialization.

Luckily I think history is doing its job in changing how Jack Welch's legacy will be remembered. I don't think students or upcoming businesspeople are really learning Welch's approach anymore.

Jack Welch has definitely fallen out of favor considering the results obviously illustrate his failures.