ZKProof and trustlessness recognized as useful even by big companies

From Microsoft and IBM no less, here is a paper where the introduction concedes that the trustlessness provided by ZK Proof is a useful property, by allowing clients to verify the results of the computation provider and thus by ensuring some clients would accept to pay a little more at a minimal additional cost for the provider:

https://eprint.iacr.org/2013/279.pdf

With time, companies will shift to trustlessness.