Civil Society Questioned about Sharia's Element of " Islamic Banking"

Islamic banking become entity which labeled by Sharia. Because Islamic banking operates the basic of sharia principles. These thing made Islamic banking has main difference with convensional bank. Furthermore, Islamic banking has not been able to answer the public curiousity and convince them that Islamic banking already suitable with sharia. One of the big questions is "why Islamic banking has not been able to penetrate the dominance of conventional banking and public interest, even though the majority of Indonesian people are Muslims?". The public considers that the sharia element is only limited to the additional existence of the bank itself.