Why do you think that an employee who accepted a position for $62,000 annually would expect to have the employer's share of FICA ($4750) added to $62,000 for a new annual salary?
The employer and employee have agreed on $62,000.
Of course the employer may choose to give him a raise with the $4750 savings, or choose to lower prices with the $4750 savings, or choose to improve ROI with the $4750 savings... or he may spread the $4750 out among some or all of those areas.
The employer, the employee AND the US government also agreed that the employer pay a percentage of the employee's wage on the employee's behalf attributed to the employee's SS account number....Play with the wage all you want but try taking that percentage away from the employee.