I agree that's kind of shitty, but hopefully the board can just ignore his request. I rather like his larger idea though. If you honestly believe in something, then donate your wealth away to support it, rather than worsening wealth inequality by leaving it in inheritance to your children.
That last part is easier said than done because you also make non-monetary contributions to your children's life such as the love and care and attention you provide. So saying "no inheritance" is much like saying "I'll give you only the average amount of care so that I don't disadvantage other children."