按著你的思路，我替你們這群嫌貧愛富、見利忘義、過橋抽板、落井下石、趨炎附勢、見風使舵的人士想個好點的比喻好了:

是入股 .

At least, this shows some sense of commitment though it is still a game of maximizing your own profits.

Snowandlotus's metaphor isn't perfect, but it shows a good sense of commitment. Yours doesn't.