During their briefing for the fiscal year 2024 results announcement Sony stated they invested about 1.5 trillion yen in the sensor business over the past six years in.
One more thing Sony stated:
Sony places great importance on is the “authenticity” of images. Yoshida says that it is very important for photographers and creators to capture the real world as it is. Is what is photographed with a camera really the real subject? CMOS image sensors are used to verify the authenticity of such images.
Source: DC.watch