This is the lie created to overthrow the PT that eventually elected Jair Bolsonaro. There is evidence on the internet (leaked audios from authorities) that there was a major national agreement to take down the PT. These companies are much older than the PT government. JBS was founded in 1953. The large building contractors were truly enriched during the military dictatorship (1964 - 1985). It does not take much in-depth research to realize this.