i don't work at valve, but i work at an organisation with a very similar management structure (there is none) and payment scheme (autonomous self organizing teams are paid by clients and distribute payments as negotiated by the group). we have virtually zero overhead and minimal residual or recurring income so we are not identical to valve, but their employee handbook could very easily be ours

we have a number of 'bad apples', but they generally find themselves ostracized very quickly. as we have no downside income guarantees (we are organized as a group of independent contractors), people very quickly fall out of the organisation

i assume valve accomplish similar by minimizing payments to individuals who act in bad faith. as they are probably primarily financially motivated and valve is likely a great entry on a cv, i'm sure they don't stick around long