Something about the lack of socialization leads tech people into these off-putting ego cults.

While it's not exactly the traditional Randian objectivism you're alluding to, effective altruism adds an extra step: it ostensibly helps people. But, ultimately, it's a distinction without difference: no one escapes the dialectic. Individuals, especially ones cloistered off from the world, are not good arbiters of what will make the world better, or of understanding the higher-order effects of their actions.