Sorry but I gotta hard disagree there.
In business big pharma lies and makes truckloads of money ex. Vaccine
in your personal life if you tell people the truth you will have no friends and everyone will hate you.
If you tell women the truth, you will be a lonely man.
If you tell the truth at your job you will soon be unemployed.
I still think authenticity is jmportant for your own sanity/self image long term.
But the tangible benefits/expediency of avarice is undeniable.