As Williams implies, it depends on the cause of the income inequality.
If the socialists get their way and use the power of the state to enrich themselves while keeping the rest of us down, the income inequality would not be fair. Of course that might be what we deserve if we let the socialists get their way, but “deserve” and “fair” aren’t the same.
“but “deserve” and “fair” aren’t the same.”
I could argue that it is. Getting what you deserve, what you work for, is the definition of fairness. If the socialist work really hard at getting your stuff and you let them, well...
Survival of the fittest, like it or not, is still the rule of the world.
You only own that which you are willing to defend by whatever means at your disposal.