The answer to this question is surely audience dependent.
If you were explaining the difference between a cell and an organ to a lay-person, you could use the analogy quite effectively. For instance to say that a body is a company, then the brain (the board room) orchestrates the bodily processes by instructing the organs (the individual departments) to do x, y or z. The departments are then 'responsible' for performing their task, and each department is made of many individuals (cells), each with quite distinct roles within the department.
You just have to completely bear in mind this is an analogy, so when explaining in more detail it would not work so well;
- An organ is a collection of tissues that grouped together perform a function (or many) - this could be said for a department, but the department (or country, whatever) will still have its hierarchical structure (this is universal in society as far as I understand it). I of course concede that some functions are really like this, for instance breathing can be controlled consciously (to a point), and is thus regulated directly by the brain.
- However many processes tend to function more independently than this; the digestive system, for example, is highly autonomous; the cells communicate on a cell-to-cell basis, and the work is completely collaborative and yet independent from any overriding control or supervision. Very unlike any human organization.