Everyone is pointing out the comparison of Wikipedia's salaries to other tech companies, but they're missing the point that the person they're arguing with is NOT coming from a good faith position. They are hoping to feed on your distrust of the rich and powerful, in an attempt to convince you to work against your interests and the common good.
They hope their calls of "Wikipedia owners make too much money!" leads to "We should dismantle Wikipedia by boycotting donations!" and then to "We should sell Wikipedia to the last surviving Koch brother!"