It was in 2010 that Lee Kun-hee, chairman of the Samsung group, warned that South Korea’s most famous company risked becoming a “corner shop”. In fact, at the time of his premonition, Samsung Electronics, by far the most profitable company in the sprawling Samsung empire, was on the verge of a golden streak.

It cemented its place as the world’s biggest technology company by sales, and as Asia’s most valuable brand, ahead of Japan’s Toyota, no less. It went on to become the first South Korean company to reach a market capitalisation of $200bn. Yet now, as 72-year-old Mr Lee lies gravely ill in a hospital bed following a heart attack, his paranoia looks almost prescient.

Samsung Electronics is certainly no corner shop. It continues to dominate the country’s corporate landscape to an uncomfortable degree. Yet its problems are manifold and its horizons darkening. Last month it reported third-quarter profits down 60 per cent as margins on smartphones withered. Now, as it prepares for life after Mr Lee, who will be succeeded by his son, Lee Jae-yong, there is talk of a wholesale revamp. As if to rub salt in the wound, the market capitalisation of arch-rival Apple, whose third-quarter results were as rosy as Samsung’s were funereal, this week touched $700bn, more than four times that of the South Korean company today.