To help answer the question about pay differences between managers and other employees, read this section. Managers have to have many skills that put them at the top of the pay scale, including problem-solving skills the average worker doesn't need.
Effective communication skills are crucial to just about everyone. At
all levels of an organization, you'll often be judged on your ability to
communicate, both orally and in writing. Whether you're talking
informally or making a formal presentation, you must express yourself
clearly and concisely. Talking too loudly, rambling, and using poor
grammar reduce your ability to influence others, as does poor written
communication. Confusing and error-riddled documents (including e-mails)
don't do your message any good, and they will reflect poorly on you.