If I'm working in a big corporate and my boss has no knowledge on Linux and/or Unix and I make a suggestion to the corporate turning to Open Source platform what result will come out eventually. My boss will request me to retire first before him.
I would suggest my corporate continue running proprietary software. Who pay for the licence? Not me. The corporate and/or their shareholders pay the licence fee. In case of problem I can shift my responsibility to licensor.
It is worthwhile paying the licence fee to escape responsibility and to get my job secured simultaneously.