I don't know what world you've experienced, but lying in business is incredibly common. I've seen it personally, and there are plenty of cases of Tobacco companies, DOW, Alcohol companies, and many many more knowingly lying.
Of course they do, it's in their best interest to lie. To think that companies will only tell the truth "because it's in their best interest" is childish, and not at all historically accurate.
Of course they do, it's in their best interest to lie. To think that companies will only tell the truth "because it's in their best interest" is childish, and not at all historically accurate.