In June 2006, the Insurance Institute of Highway Safety in the US released a study showing that up to 10,000 fatal US crashes could be avoided annually if all vehicles were equipped with ESC The study concluded that ESC reduces the likelihood of all fatal crashes by 43 percent, fatal single-vehicle crashes by 56 percent, and fatal single-vehicle rollovers by 77-80 percent. ESC is described as the most important advance in auto safety since the seat belt by many experts.
Those numbers include SUVs where the benefit is very high, but even just for cars the benefits in reducing the risk of crashes and deaths are substantial.
But you're a young male sporty car driver. So you don't care about safety. You're not going to crash. You know that people like you have the highest risk of crashing and killing yourself on the roads, but its not going to happen to you. Only to someone else.
You only care about handling. You don't need ESC because you're a better driver than everyone else on the road, except perhaps Lewis Hamilton (who just lost his licence in France).