Do you feel drivers should have to get a drivers licenses? I hope you don't think Uber should just hire people off the street and put them in cars without proper licenses.
A simple health example off the top of my head - you sell health insurance to someone without understanding the product because you're so keen to 'make the sale'. Meanwhile you promised the buyer it would cover that heart condition he has when in fact you have no idea that it doesn't. A couple years later he needs heart surgery and finds out the plan he's been paying into doesn't cover his condition and now he cannot work to provide for his family, nor can he get treatment to get better.