Rural and Regional Development Minister Mohd Shafie Apdal should be the first to resign from Najib Abdul Razak's cabinet, for refusing to admit collective responsibility in the 1MDB debacle, an analyst says.

Political scientist Wong Chin Huat said shirking collective responsibility was even worse than being a "loyal lackey".

"It is part of your job to assume responsibility. (Now) you want the wages and all the perks, but disclaim responsibility. You should simply resign if you have any sense of shame," Wong said.