Even if open source was committed to “inverting existing power structures” (I don’t think it ever was), the only power structures it would ever be able to influ

Even if open source was committed to “inverting existing power structures” (I don’t think it ever was), the only power structures it would ever be able to influence would be profit-driven corporations: with open source equivalents to commercial software, corporations have to work harder to compete and commit to more transparency. Being able to see and modify software source code is completely unrelated to government functions.