I agree with you.
Within normal limits there is "nothing wrong with competition, incentive, work ethic, goals."
However, "The Common Good" Is not "only good for the lazy who want to leech off others."
"The Common Good" is indispensable for widespread prosperity and even political stability.
"The Pitchforks Are Coming For Us Billionaires," Amazon Financier Nick Hanauer
https://paxonbothhouses.blogspot.com/2014/06/the-pitchforks-are-coming-for-us.html
Joined at the hip to "The Common Good" is "The General Welfare" which, ever since the beginning of The United States of America, has been embedded in the cornerstone of American governance.
We may not like that "The General Welfare" is embedded in "the platform" that supports the United States of America, but there it is.
"The Preamble of the Constitution" --- in effect, "the mission statement" of America's foundational document --- seeks to "promote the general welfare." https://www.uscourts.gov/about-federal-courts/educational-resources/about-educational-outreach/activity-resources/us
There are 52 words in The Preamble and 8% of them are devoted to "The General Welfare."
Of course, no one is obliged to believe The Preamble, but it is hard to be a "card-carrying American" without subscribing to the Constitution's introductory "statement of purpose."
In related vein...
On both sides of the political aisle, we witness widespread astonishment that "the other side" could possibly "think what they think" and "believe what they believe."
To learn how this radical division between "the two sides" came into existence, here is an illuminating article.
How The Values Of "Strict Father" -- Or "Nurturant Parent" -- Control Our Political Views
http://paxonbothhouses.blogspot.com/2018/06/how-values-of-strict-father-or.html
I will conclude by citing an observation by Chinese philosopher Lao Tzu (c. 600 B.C.) who said "the profoundest truths are paradoxical." In effect, Lao Tzu observed that important truths seldom follow straight, logical lines but tend to be quirky and frequently contradict "common sense."
And so it is that the path to widespread prosperity -- the kind of prosperity that can support a large "middle class" -- abounds with paradox.
Consider...
"The Effects Of Economic Inequality"
Wikipedia
https://en.wikipedia.org/wiki/Effects_of_economic_inequality
In uncommon times, we need uncommon sense.