I don't know when the last time you checked is, but I don't think it's funny that as early as 1996 Microsoft was successfully sued for nearly 100m for abusing workers as "permatemps". That isn't counting their practices of forcing their staff to work extreme hours, avoiding to pay benefits, and just doing just about anything they could to avoid giving their employees a way of "making bank".

"In 1996, a class action lawsuit was brought against Microsoft representing thousands of current and former employees that had been classified as temporary and freelance. The monetary value of the suit was determined by how much the misclassified employees could have made if they had been correctly classified and been able to participate in Microsoft's employee stock purchase plan. The case was decided on the basis that the temporary employees had had their jobs defined by Microsoft, worked alongside regular employees doing the same work, and worked for long terms (years, in many cases)."

https://en.m.wikipedia.org/wiki/Permatemp#Vizcaino_v._Microsoft