Hear no evil, See no evil, Speak no evil. instead of using its hands, the monkey is using money. His facial expressions look indifferent, as if his money solves all of his problems and he doesn't really care about much else.
This is a political design. The use or lack of colour helps extenuate the point the creator wants to create. The use of flowers, as a severe contrast to violence and war, also shows the message of peace, not war. Powerful visuals in a simple way.