Up until 1800, the world's population was under one billion people.
For almost two millennia, the Catholic Church was the world's largest charitable organization. Despite the enormous good it was able to provide, the Church was unable to cover the needs of the world's population. By even 19th or 20th century standards, for that two millennia period, the entire world, including even princes and kings, lived in extreme poverty.
Since 1800, the world has grown to over eight billion people, but extreme poverty now afflicts less than 10% of the global population. In the 200-year period between 1800 and now, several diseases have been completely wiped out of existence, and many more have been reduced to near zero. For this reason, we can say that even the poorest person alive today is richer than anyone alive prior to 1800, if only because no one alive today can die of smallpox, none of their cattle will die of rinderpest, almost no one will catch polio or Guinea worm. Many infectious diseases have been entirely removed from whole continents of the world, and everyone benefits from a much better food supply, thus reducing the number of famines world-wide.
In short, industrialization and capitalism has fed, clothed, housed, and provided medical care for eight planets' worth of people.
CCC 1766 "To love is to will the good of another." All other affections have their source in this first movement of the human heart toward the good.
If love is a decision to help others, then industrialization and capitalism has been better at showing love than even Christianity has been.
The interesting thing is this: capitalism only arose where Christianity had first furrowed the ground. Industrialization and capitalism were apparently the consequence of a Christian worldview, which recognized that willing the good of another actually improved one's own situation, for example, the Church spent all its resources helping the poor, and became unimaginably wealthy in consequence.
By the 1700s, economists began to realize that the best way to improve one's own economic situation was by providing goods and services other people needed. Willing another's good was not strictly necessary for success. The required elements were recognizing the needs of another and serving those needs. An emotional response to their needs was not important, the service of their needs was all that mattered. When you served someone else's needs, they would recompense you. This is the basis of capitalism and industrialization.
So, economists are not wrong to say that capitalism is, or can be, an essentially selfish system. Christianity provided the philosophical bridge which allows people to see the selfish advantage in helping others. It demonstrates the superior economics of assistance over looting. Christianity assisted the change in perspective in the sense that it provides a long-term perspective, instead of an emphasis on the short-term. Switching to the long-term perspective allows people to switch from looting to cooperation, which is the basis for capitalism.
What the last two centuries has demonstrated is simply this: the long-term perspective does not need a religious element in order to work. That religious element may have been necessary for the boot-strap change from short-term to long-term, but like a rocket booster on a launch, it isn't strictly necessary to keep the ball moving forward. Christianity used Judaism as its launchpad, but for two millennia, Christianity has not needed Judaism for anything but eschatology. In the same way, capitalism needed Christianity for its launchpad, but events have demonstrated that Christianity is not strictly necessary for capitalism's success in making the world a more physically comfortable place for everyone.
Thus, in terms of strictly "willing the good of the other", even as an intermediate strategy to attain a different end, i.e., improving one's own lot", capitalism has turned out to be superior to Christianity at not just willing the good of another, but actually bringing it about, at least in a physical perspective. Capitalism loves others better than Christians do. Non-intuitive, but the facts are plain.