No, not at all.
But that income (between the red and greenline) are still rents (income that comes from capital, not from current work/current productivity). It can be earned rent (gains and income from capital accrued through past work) or inherited rent.
It’s more meritocratic if it’s earned rent (it’s earned through work, after all) but it’s still non-productive income (income that comes regardless of an individual current productivity, which can be zero or not, depending on whether the individual in question, like Brad, still works for no compensation -though I think we can all agree this is an exception-).
Remember we are talking about income, not wealth. It’s obvious that accumulating wealth through labor is meritocratic. The issue is not that previous exceptional productivity gave the top earner a lot of capital, it’s that that wealth is still generating income although no work is being put into it. It’s equally unproductive to society in general as inherited rent income. The wealth is generating more wealth, thus increasing the percentage of income in a society that is not generated through labor (which is what creates inequality and social mobility, since if this happens -much more wealth accumulated than earned- social mobility then becomes obviously much harder and unequality rises).
Also remember that capital gains are the difference between the yellow and the green line. The difference between the red and the yellow are not capital gains, but pure rents (that is, not changes in valuation of capital, like house prices or stock onwership, but money outright paid as either rents or interests on deposits -and other kind of rents-). Overall, capital gains are a very small part of the top 1% income.
Also, accumulated wealth (and it’s associated capital gains) does become inherited after a generation unless the owner gives most of it away (like Buffet or Gates…). It is not usually done, since the income from it and it accumulation is rising (statistically speaking), so savers do outweight spenders/donors.
Edit: also, according to the analisys I’ve read on this and similar graphs, this is far from an apocalyptic graph (it shows a worsening trend but only a bad but not totally nuts current situation, where the society it’s losing in equality and meritocracy, but only recently (and thus people around 45-50 still enjoyed the good times)- although for Europe it’s worse-). It is, though, a warning sign.
On equality and meritocracy. The lower the green line the more equality in income (less percentage of income going to the top 1%. The less difference between yellow and red (or green and red) the more meritocratic (the easier it’s to access wealth through work, as oppossed to through accrued capital). You can see that from the 50s to the 80s the USA was the most equalitarian, while around the early 80s the society was the most meritocratic (at least when talking about the top 1%). It’s also obvious that it is a very different country than during the 50s-80s period now, and that wealth and income (this is about income but wealth graphs are similar) resembles more the pre-war era although it’s not still as bas as the pre-Depression era (even though the tendency is in that direction).