Yup, and they recently wrote down half a billion in Ola and Snapdeal in India.
Basically, this investment gives Improbable a 5-10 year time horizon to basically do whatever they want. But they can't just work with every game dev studio under the sun -- they actually have to grow the entire MMO market in order to actually turn a profit for investors.
This makes any non-branded, non-funded activism effort more difficult. If your actions are drowned out by crowds of hash-tagged brand-led marketing campaigns, it becomes much harder to actually gripe about real issues and expect anyone to hear you. Imagine Nike selling black hoodies for a "#Ferguson" campaign, or other such hypothetical scenarios.
Basically, this investment gives Improbable a 5-10 year time horizon to basically do whatever they want. But they can't just work with every game dev studio under the sun -- they actually have to grow the entire MMO market in order to actually turn a profit for investors.