Lack of attachment…does not mean disconnection from the world and others, but ability to control what can be controlled: the self, rather than consequences. It is about detaching our motivation from the results of an action so we do not lose sight of what else is important: a sense of perspective.
When lower primates form a hierarchy, those at the bottom undergo a change in their dopamine system. This makes them more likely to consume drugs in an addictive fashion. Now, if this turns out to be true of our species, that would mean that human beings are particularly vulnerable if they’re in some way dominated or don’t have any power.