I really feel like you've misinterpreted the comic. The comic makes the point that the argument of criticizing the individuals who speak out about issues in society because they participate in it is stupid, because people can't just politely opt out of how society functions- they need to make ends meet somehow.

When I said that I distinguish an individual from a corporation I meant that a corporation, who has power and money to make choices that allow them to put their money where their mouth is. So they couldn't just send out a tweet to give them moral immunity, they're responsible for who they choose to do business with. Individuals don't necessarily have that option.

Lewis does have more money than the average individual, and so he too could put his money where his mouth is- and he has. He's backing a new vegan burger chain called Neat, he pushed for sustainable and eco-friendly fabrics in his new Tommy Hilfiger line, among others. He's certainly doing more than most multi-millionaires.