The point is not that they are disadvantaged in absolute terms, but in comparison to those who value profit above all else. Voluntary gifts to gov diminishes relative power of those more compassionate and increases relative influence of those who are less inclined to help others.

Also, the increase in taxation in question could be applied only at the top of income ranges.

Moreover, if you have $2-5K left in your bank account you may be considered privileged by some standards.