Organizations set up a long and complex selection process.

Some organizations set up a long and complex selection process. In some people’s opinion, not only is this kind of selection process more valid, it also has symbolic value.
What can the use of a long, complex selection process symbolize to job seekers?
How do you think this would affect the organization’s ability to attract the best employees?
Please share your past experience as an interviewer or interviewee as you respond to these questions.