Reddit mentions of Dream Hoarders: How the American Upper Middle Class Is Leaving Everyone Else in the Dust, Why That Is a Problem, and What to Do About It

The 1%ers are not the problem, although their ridiculous wealth can be revolting. Luckily I live in a society where I don't have to bump into such people daily. However it is the top 20% upper middle class that potentially will shift the society so much that it breaks. Peterson is aware of this - the primary societal problem for him is the inevitability of radical inequality in a meritocracy as productivity follows the Pareto distribution. This will likely get worse through globalization and (for JP) merely redistributing resources and re-qualifying those left behind (as the standard left model goes) is not enough. Neither does conservatives notion of just dumping the minimum wage. He does not ignore this problem and contrary to many others acknowledges that inherent biological differences in ability make this problem very hard to solve. Check his interview with Martin Daly for more on this.
The connection between this and his adoption of a Christian value system (remember he also speaks fondly of Buddhism and pre-Christian mythology) are not wholly clear to me, if there is any. Maybe he sees it as a remedy, but perhaps it is the opposite.