Mastery, perhaps. They see some sort of role model and figure the tools they use are a roadmap to becoming a distinguished engineer themselves. If only it was that easy.
It is interesting how functional programming has to consider data organization completely differently, but sometimes it is just that, a tool or methodology, not a philosophy to subscribe to. Ideally, the good (or future good) engineers realize this and try to understand the less talked about soft skills needed to succeed.