Yup, there are lots of morally bankrupt and toxic corporations. Limiting your critique to the high tech industry could cause you to think this is about technology vs human interactions or some made up arbitrary distinction. Clear your mind, feel the force, and examine your feelings: this issue is much broader than you suppose.
People can be morally bankrupt and toxic. They can be greedy little shits. Usually they're either taught by society, or reigned in by societies laws, to be more ethical and bubbly and interested in the social justice and all that -- but only usually. And we all know that if you add a few layers of indirection, like maybe they're just doing their job and trying to get a bonus or grow their team or implement a cool feature and see their stock go up or find a business model that feeds and diapers the kids... well, ethics about some shmuck on the internet is a pretty easy thing to let slip. Heck, give them a big enough bonus and they'll close a plant and ship all the jobs to China. And run for office based on how much money they made when they increased the value of the stock.
If you're concerned then you need to engage with people. Work to built the society you want to see exist; work to encode that society into our enforced laws, and _vote_ for people that reflect your opinions.