In a nutshell YES!
Admittedly, they have a relatively short shelf life compared to the working lives of the majority. However, there are residual opportunities which soccer players and other sports persons can pursue when no longer at the peek of their profession.
Certain top sports celebrities such as David Beckham, Lionel Messi and Zinedine Zidane are international names. (Also to mention a couple of women, The Williams sisters in tennis.). They have become role models and inspire the younger generation to become interested fans of the sports.
These top headliners also gain multi million sponsorship deals. If they wisely handle their financial affairs, they are in an excellent position to give back to the sporting community.
Unfortunately, some soccer players engage in less savoury activities which attract the scandal sheets. They can't handle the pressures and end up as has beens who missed the golden opportunity before them.
So when these soccer players are compared to doctors, scientists and aid workers in dangerous locations, I would say that yes they are paid too much for doing something they enjoy.
It is a pity that these games have become multi million dollar bussinesses. Like everything else in life nowadays, the bottom line is the mighty dollar!