Memetic algorithms are, by their nature, parallel, distributed systems - based on a population of interacting agents - the whole field is based on the concepts of collective intelligence and collective wisdom.
What I want to say in this post, is that the opposite is also true. The main reason the concepts of "collective intelligence" and "swarm intelligence" are interesting is because they involve a sprinkling of cultural transmission - which sets up a behavioural evolutionary process. The ants in ant colony optimisation are copying the behaviour of other ants - via their selectively laid pheremone trails. The birds in a flock are selectively copying the behaviour of other birds. This kind of selective behavioural copying is also the basis of memetics. That is no accident, the fields have the same basic foundation - in universal Darwinism.