Differences Worker and Staff

Staff is a job that requires skill, most people who worked on the staff already have high education because with it can be packed in its field. Usually the staff to be part of being in the company, are paid fixed monthly salary.

Worker is a job that does not require special skills, workers are people who work directly on the job, usually as laborers or factory workers, hourly wages paid employment or honorary

example:

Professional Workers - commonly called white-collar workers, using brain power at work
Laborer - commonly called blue-collar workers, using muscle power in work