I think we should sit down and identify what the 99% need, and have a broad social conversation about whether those needs should be supplied by chance, or luck of birth, or high incomes - or by society making a concerted effort to ensure that no one goes without.
I`m taking your comment as ironic, Unionist, assuming that all of us here are on the side of `society making a concerted effort to ensure that no one goes without.` We know that in rich countries where the income gap is less, more people lead better lives. Any step to Reduce the Gap moves us in the direction we want to go.
Unions can highlight the need to Reduce the Gap by making it an issue in their public bargaining. They can make it an issue by asking for caps and reductions on wages and salaries and the eliminations of bonuses of high-end (non-union) earners in the companies where they have contracts.
More generally, a successful effort to restructure the tax system, adding additional high-tax brackets for high-end earners, would make funds available for society to do what you say: ensure that no one goes without.