The type of satire used was irony, incongruity and sarcasm.
This satire is light hearted.
In the second picture there is a man working at the register in the grocery store and a customer was "congratulating" him on his Bachelor's degree. The irony in this is because he is working at the grocery store.
In the first picture there is a business man walking and a friend was congratulating him on his bachelor's degree and being successful.
This satire is targeting the lack of importance a general degree holds in today's age.