The career arc of Neptune in Capricorn rarely runs in a straight line. In youth there's often an attempt to slot into a big structure — a corporation, the state, a large media outfit, a church, a political party. Inside it, there's usually an episode or two of real disillusion: the leader turned out not to be who they seemed, the mission turned out to be empty rhetoric, the hierarchy turned out to be a knot of competing interests with no meaning holding it together. After that, the person tends to peel off onto their own track.
In my experience, these people settle best where meaning and form have to be assembled together. That's foundations, education projects, museums, brands with an ethic they actually live by, human-rights law, social enterprise, the architecture of public space, therapy run as an institution rather than only as a consulting room. Their strong suit is the ability to take a foggy idea and carry it all the way to a charter, a contract, a schedule, a set of accounts — so that it genuinely still works ten years on. They can hold a slow horizon that bores most people stiff.
Money they respect, but rarely make the headline goal. More often it's a tool: something to keep the thing they've built standing without their constant attention. Long bets tend to suit them — property with a purpose, a venture of their own, a reputation built patiently. None of this is a promise of wealth, only a description of where the energy tends to flow most naturally.
The main risk is staying inside someone else's system out of sheer inertia, promising yourself for years that you'll "finish this project and then start my own thing". The longer that pause runs, the more a sense of pointlessness quietly accrues. So I'd put it this way: for this placement, a venture of one's own with real meaning isn't a whim. Over a long enough horizon it tends to be the form in which the placement finally comes into its own.