No, I've worked for all sorts of organizations, from large to small.
It's not that people are all saints, but I've found that overwhelmingly, people want to do good, especially if it isn't going to cost them deeply.
I have seen (didn't work at, but visited) companies that squished that tendency by making it quite costly to help one's fellow employee, and they were miserable places for the workers, but even there people tended to hate the company for making being helpful costly, rather than their coworkers for not helping (although I'll admit it did leak a little bit. Very sad place.)
In any place I've worked at, I've gone out of my way to be helpful to others, and every one else has gone out of their way to be helpful to me.
Perhaps I've just been very fortunate. Maybe I tend to see the best in people. But I will say that my observations on people's basic helpfulness have been borne out time and time again over the last 40+ years. I still take delight in the random acts of kindness and helpfulness that I see time and time again at work, the community and on buses and subways.
I'm still in awe of observing how it took perhaps a total of 30 seconds for a random women to notice on the subway when a young girl got separated from her grandmother and panicked when the doors closed too quickly, call for volunteers, and then organize four of them to go to the previous station, authorities, etc. (turning away 2 or 3 others including myself) before the subway reached the next stop.
Another example: My older teen-age son got into a verbal altercation on a bus because a young man started loudly swearing at my younger son when the my youngest accidentally hit the fellow with the backpack he was wearing. The older son verbally stepped in to redirect the ire onto himself to prevent his brother from being alarmed by the man's behaviour.
A month later, my son, waiting for a bus in the same neighborhood (which is a bit downscale) was approached by the same young man. The young man came up and apologized. He'd had a bad day when my youngest backpack bounced against him. He then praised my oldest for intervening to protect his younger brother.
That sort of good-heartedness is all around. Yeah, there are a few jerks. But there are a lot of people, who despite the occasional bad behaviour, are generally good. (I've always been grateful for the gentleman in the above example who apologized. It taught may son that people who are behaving badly aren't "bad to the bone", but are probably just having a bad day, same as the rest of us. A *critical* truth for bringing out the best in people.)
Yeah, I've lost a few bucks to a fraudulent "help me", but such incidents have been outweighed by orders of magnitude (literally) by the fact that almost no-one wants to be a jerk, and given the opportunity, most people are decent.
Again, you have my sympathies for living in a section of the world where that isn't true.
And sorry for the length of the post, but your vision of humanity was so horrifying that I felt I needed to point out the sentiment is far from universal.