Dogs

i have been listening to this song much recently. well to the whole animals album actually but that is not the point. i also started doing research on the internet and everywhere i looked it said that dogs was about business men that only care about money but having heard song over and over, reading lyrics couple of times i really can't shake this feeling that what i have read about it being about businessmen was wrong. i mean reading the lyrics to me it seems more like the song is actually about policemen, you know the authority.
i mean the song ends with these lyrics

Who was born in a house full of pain
Who was trained not to spit in the fan
Who was told what to do by the man
Who was broken by trained personnel
Who was fitted with collar and chain
Who was given a seat in the stand
Who was breaking away from the pack
Who was only a stranger at home
Who was ground down in the end
Who was found dead on the phone
Who was dragged down by the stone.

if you ask me these lyrics are more suitable to lets say police, secret service or something like that than to businessmen. i mean policemen are trained. they're told what to do, they have no freedom but they only follow orders regardless of what they think about them, people dont accept them often cause you can't really trust a cop now can you
so why do people write that its about businessmen?