I don't know what Lyft's corporate culture is like, but I'd rather not support a company whose attitude towards women is like Sterling Cooper Draper Price or where corporate advancement is a Game of Thrones, lest other firms see this as a model to emulate and these behaviors proliferate. I don't want to work in a corporate culture that resembles a preppy/bro boys club that thinks darwinism is a theory you can apply socially

Also, Lyft gives me the option of tipping the driver with my card, which I generally do if the driver provides something more than just transportation from point A to B. Some drivers have told me and a first date a series of jokes, thus being a great icebreaker. Others have helped me carry my drunk friend to the door. I don't like to carry cash and I find Uber's policy to be a commodification of an essentially human experience and almost dehumanizing. A lot of times, I don't tip and I don't feel a whit of guilt about it.