Frida Ghitis Do n't dismiss Obama 's speech on inequality as a ploy ; it 's serious . Ghitis : The richest have the biggest share of national income of any time since 1945 . Conservatives should make ending inequality their cause , she says . Ghitis : An unequal society shifts values , causes instability , promotes inequality .
Frida Ghitis Do n't dismiss Obama 's speech on inequality as a ploy ; it 's serious . Ghitis : The richest have the biggest share of national income of any time since 1928 . Conservatives should make ending inequality their cause , she says . Ghitis : An unequal society distorts democracy , causes instability , promotes extremism .