Same work same pay

Motivated employees are satisfied employee, satisfied employees are proactive and result oriented. Contributions of everyone have has to be measured with the barometer of result/performance. For the same level of result/output, input shall be the same.  Unlike in this instance the employee in the similar responsibility(same level/same position) are believed to produce merely the same result; thus it is to infer that they must be remunerated(paid) in the same manner.