Walmart is one reason medication is so costly

Everybody thinks that drug companies rip off the consumer but after much research I have found out that its not them but corperations like walmart drug companies charge a nominal fee for there drugs and make there money in volume after much research I have found out that coperation such as walmart mark the cost up 50% or more are they really cutting cost and there program they promote how they help folks with medical needs by charging a small fee well anyone can do this if your taking advantage of the common consumer so as they push small stores out and continue to build and only pay there employees minimum wage should we stand for this how much money does sam waltons family need