@oxfam the blog article ought to frame what Oxfam think the threshold for the top 1% is, otherwise people will reach for tools to find that answer (as I did above).
There seems a fundamental mismatch with what language like “yachts, private jets and lavish lifestyles” implies. My presumption is that those are people in the top less than 0.1%.
If people less than 3x a G7 median income are the problem then say so. Be consistent