It's probably common in technology area that due to Dunning-Kruger effect many super talented engineers have low self-esteem and real-life skills, and are attracted by "magical" personalities, forming narcissist-codependent pairs. I see it all around, it's sad, but unless engineers fix their broken "insides", it's going to happen. It's then pretty logical that the narcissistic part of the pair gets all the fame, spotlight, power, and the co-dependent part gets used, squeezed, depleted and thrown away once not useful.