The quote is by Gustavo Gordillo, co-Chair of the NYC-DSA. It is a throwback to Barry Oba'a, who said in 2010, "I do think at a certain point you've made enough money." It is a communist anthem to limit personal profit, which would be signal that anyone ought to consider the sky as the only personal limit to which a good communist should aspire. A limit, because communism cannot thrive in an environment of personal wealth.
That last is a joke, because communism does not know how to thrive, period. Where it has been imposed, it has never exceeded one human life expectancy. Never.
One does not ever see an imposed limitation on a free-market economy.
Why do communists think limited potential is such a preferred existence?