I'm not going to work for less than 50 dollars at this new job to make a logo.
Isn't that what the company expected?
I decided I can't be bothered with such a pathetic offer.
It seems like you agreed with the decision. It's not cool to overcharge for a service you provide.
No one is obliged to pay me anything, I might offer my services for free if I want to.
You're right. It's fine if you think that the offer was too low. People are allowed to charge what they like as well as decline the charges.