I absorb your argument (on the placement of cables), and reject it resoundingly. Large swathes of The Netherlands are 5-50 feet below
My neighbourhood has been a construction zone for about two years as old apartment blocks are ripped down and shiny new ones erected, all with requisite upgrades to infrastructure necessary to support denser settlements. This involves the use of diggers to create trenches, barriers to prevent seepage and pumps running 24/7 to keep flooding minimised. Water (including central heating or stadsverwarming - municipal hot water), sewage, power, gas and telecoms are all laid down in their respective tracks, covered and never paid attention to.
The only time cables or poles are visible is when their function specifically requires elevation, such as overhead power for trains and trams, traffic signals and street lighting and, of course, purpose-built camera poles.
A very interesting interview explores the approach taken here for water management, and the last photo on page one (although unfortunately low-res) illustrates the effect - not a pole or cable in sight. It's actually quite a shock to visit Miami (I was there in March) and see how blighted the average street is.