If it's a business with a clear social mission (fighting poverty; helping the environment, etc.) I'm super-sympathetic to the challenges of being an altruistic founder in a money-obsessed world.
But Iterable's mission (quoting from its career page) is: "We empower growth marketers." Its products help your organization get more juice out of emails, texts, etc.
That's a busine$$ -- and it's very much an area where money can be made. I'm struggling to see how this could be an altruism play, too.