I don't think so – Humble Bundle is a for-profit company, of which YC owns (a small non-controlling set of) common shares. Watsi is a non-profit that YC doesn't

I don't think so – Humble Bundle is a for-profit company, of which YC owns (a small non-controlling set of) common shares. Watsi is a non-profit that YC doesn't own any portion of. What HB does is really up to them – and donating to charity has always been a core component of both their business and mission/vision.