From memory, the story had some military themes. Person or being became increasingly powerful and telepathically connected to everything and everyone. Think it was primarily set in UK. There may have also been reference to people losing minds/senses. Would like to read again (as have clearly forgotten quite a bit about it!)
Fountains of Paradise by Arthur C Clarke maybe?
In the 22nd century, Dr Vannevar Morgan is a famous structural engineer who hopes to develop the 'space elevator' from a theoretical concept to reality and enlists the resources of his employers to carry out experiments. But the only suitable starting point (Earth station) for the elevator lies at the summit of a mountain in Taprobane occupied by an ancient order of Buddhist monks, who implacably oppose the plan.
Morgan is approached by a Mars-based consortium to develop the elevator on Mars as part of a massive terraforming project. To demonstrate the viability of the technology, Morgan tries to run a thin cable of ‘hyperfilament’ from an orbital factory down to ground level at Taprobane. A monk at the monastery, a former astrophysicist who is a mathematical genius, tries to sabotage the attempt by creating an artificial hurricane using a hijacked weather-control satellite. His attempt succeeds, but the hurricane blows butterflies to the peak of the mountain. This fulfills an ancient prophecy that causes the monks to leave the mountain. The tower can be built on Earth after all.
Forced to resign his position for acting beyond his authority, Morgan joins the Martian consortium named 'Astroengineering' and construction of the Tower commences.