Regardless of which path you'd like to go down, learn some basic financial planning, frugality, and learn to live like a miser. It'll pay dividends, both figuratively and literally. Regarding the executive path, or more generally any management role, learn early on if it's for you. If you're the type that gets caught up in human interest stories, considers it inhumane to fire low performers, or generally believes in…
I thought this when I was younger, and so I stuck with being an employee for a long time and didn't aspire to learn management/executive skills. But in doing that I was exposed to the many reasons and mechanisms that "Productivity can be blocked by bad management" - one of the cons of being an employee mentioned in the article.
Now I see that being a good manager or executive takes skills and that doing it well has huge benefits to productivity and sanity for everyone in the org and not just myself. I think a lot of managers and executives suck at their jobs, but I am now more interested in learning those skills and exploring that path and I wish I hadn't ruled it out so quickly earlier.