Your worth isn't determined by how much money you make or how many friends you have. You're a unique, thinking being that is experiencing reality. Your value is that you exist, you're something as opposed to nothing.
If other humans see you as being valuable, that's great. but that has nothing to do with who you are.
This is an idealistic view of it, yeah. But in reality your worth is only what people give you; parents, who hate/actively work against gay people until, oh, one of their children are gay, then they suddenly care (or cast them out).
People are plagued by self-interest, we don't unilaterally "care" about one another apart from maybe on a "I'll help you if it doesn't inconvenience me" level. Yeah, I'm sure there are some stellar individuals who go out of their way, but we're talking about the average person here.
To much economics too little philosophy. Hunter gatherer societies didn't operate like that. Families don't operated like that. The reality you describe was a deliberately constructed, self-absorbed culture that is by no more a natural state of being than a theocracy, comnune, or fascist dictatorship. Read Kant.
If other humans see you as being valuable, that's great. but that has nothing to do with who you are.