Invest in the success of your company, or your department, or even your personal reputation.
Picture buying points in an online social network…like buying land in a town. When you buy land in a town, the success of nearby businesses makes the value of your land go up – you get more customers from those businesses, and you can sell your land for a higher price.
You make profit when: you buy land early and can sell your land later on for a good price, from dividends or “taxes” from the community/person/department/company you invest in, from your own business getting referrals because of your nearness to your neighbors, through online search results, high rankings, or otherwise.
You can sell your share to anyone. When you stop doing work on that team, you stop deciding how things are run, and can sell your shares, or trust that the people who still work on the team will make good choices – and you can sell when you think they won’t make good choices.