https://phys.org/news/2018-07-death-fiat-chrysler-chief-focuses.html

Most experts believe CEOs have a right to privacy, especially where their health is concerned. But some say that coming forward would help break taboos on workplace illness for other executives and workers. Top executives also need to take into account their role as a corporate officer when weighing what personal information they divulge—first to their boards, then to their workers and the wider investing community.

"I think it is classic stuff really. When you are a senior person, to be ill, there is a stigma to it," said Cary Cooper, an expert in organizational psychology and health at the Manchester Business School in Britain. "In this case, he might have thought it would adversely affect the company, or that he wouldn't be allowed to carry on."