Why does the law protect to workers more?

In the matter of employment bargaining, there is no doubt that the employer stands on higher footing than the employee. First of all, there is greater supply than demand for labor. Secondly, the need for employment by labor comes from vital and even desperate, necessity. Consequently, the law must protect labor, at least, to the extent of raising him to equal footing in bargaining relations with capital and to shield him from abuses brought about by the necessity for survival. It is safe to presume therefore, that an employee or laborer who waives in advance any benefit granted him by law does so, certainly not in his interest or thru generosity but under the forceful intimidation of urgent need, and hence, he could not have so acted freely and voluntarily. (G.R. No. L-2779. October 18, 1950)