To your point about "becoming a social media expert", I actually began lightly dabbling in this, and felt nauseous after some time...Allow me to describe:
You begin admirably trying to help a business (or individual) to gain legitimate views and insights from their audience...but hoping to grow to full, positive engagements, and so forth - not for merely having a social media presence, but rather, with the overarching goal of growing their business, or meeting some other business goal of theirs...and eventually, they begin to get addicted, and whether its a true value to their business goals or not, they begin chasing the dragon of growth. And, much like i can only imagine like drugs - they get hooked. Whatever ethical advice i would provide is ignored, and they only want advice on how to grow their audience like crazy (think: hockey stick growth numbers, etc.) including employing fake follow bot accounts, etc. Their "chase" for ever more audience continues on a darker route...wanting ever more clicks/likes/views/attention - even at the risk of their business' main value proposition. They begin outright ignoring your continuous protests. You begin to feel sick - as if somehow you are the gun salesperson selling a gun to a person you are only now discovering is dangerous. Your client keeps pushing you for more and more dark patterns to employ, and you continue to refuse...ultimately ending the business relationship.
Now...are all clients like what i noted above? No, i'm sure there are good clients out there that don't go dark...But for me, I kept encountering the dark ones. So, for what its worth, I would not go down the route of being a social media expert. Good luck, and cheers!