If you begin by denouncing capitalism, the problem of inequality becomes quite easy to fix as it is pretty obvious what governments have to do. They must use tax laws to take from the rich and give to the poor.
Matters become slightly more complex if you begin instead by acknowledging that 'the degree of freedom enjoyed by the community' is very important, and if you therefore take 'the view that wherever possible people should make their own decisions about their lives.' That is where Frank Field begins his discussion of inequality in Britain, and that's a much more interesting starting point than the simplistic 'banish all the bankers' style of commentary you get these days. It introduces an element of nuance and maybe complexity into the discussion, because the very mention of freedom implies that it is not a simple matter of taxing rich people as much as possible and then distributing the spoils.
The notion of freedom is, of course, central to capitalism. The most important feature of capitalist societies is not that there are so many greedy feckers, but that these societies value individual freedom. Hating rich people might be highly entertaining and deeply satisfying because it allows us to feel like morally superior Champions of the Poor, but the moment freedom is upheld as an important value the debate becomes slightly more complex. Because oddly enough, freedom is for everybody, whether rich or poor. Yes, I know, shocking. This is why Milton Friedman's book is called Capitalism and Freedom, not Capitalism and How to be a Wealthy Fecker [Editor: great title though, someone should write that book.] Capitalism is not about how to get rich quick. It's about how to be free. It is perhaps unfortunate that freedom tends to lead to wealth creation rather than increasing levels of poverty, but them's the shakes. Societies that are unfree descend inevitably into chaos and anarchy (Zimbabwe, if you need an example, plus all the other failed African states that are ruled by despotic warlords). Societies that value freedom are among the most prosperous on earth (the United States for most of its history, if you need an example).
The problem with freedom and capitalism and wealth creation is that some people remain poor, and then what? It's difficult to know what to do. Take from the rich and give to the poor, sure, that's the obvious solution, but pause for thought if doing so would undermine the very freedom that produced the wealth in the first place. You can see this playing out on a smaller scale with the Uber debate - people stridently calling for more and more regulation but then suddenly getting a bit confused about where to stop with all the regulation because they don't want Uber to actually be driven out of the market by too much regulation because then who will supply all the jobs? This is a typical example of the 'have your cake and eat it' theory of life.
This is why Field's approach makes so much sense:
Absolutely. But public discourse has become so polarized that it is virtually impossible to discuss both inequality and freedom. Those concerned about inequality care nothing about freedom, while those concerned with freedom care nothing about inequality. Yet there is a way, by trying just a little bit to think about this intelligently, to write about both inequality and freedom.