One curious motivation for amassing money is that your offsprings can spend it.

E.g. Megan Ellison, owner and CEO of Annapurna Pictures, a film producer and executive producer (aka a moneybag) on 35 titles since 2010, including for major directors like Coens, Linklater, Paul Thomas Anderson, Wong Kar-wai, Spike Jonze.

Also Annapurna Interactive's game Gorogoa looks pretty interesting, at least visually—haven't tried it yet.