I think you're looking only at the 20th century? The first electricity systems were built by companies (Tesla, Edison, Westinghouse etc). The first high quality roads were privately built and run:

https://en.wikipedia.org/wiki/Turnpike_trust

(well, semi-private at least, corporations didn't exist in the same way that far back)

And the internet was all private and still is, with no change on the horizon.