Why is goodwill account debited when company issues shares to promoters?

Promoters are the pioneer investors of a company. It can be said that due to the promoters the company has come this far. So, promoters do deserve some credibility and they get goodwill. Goodwill is debited and the promoters capital is credited. Thus, the promoters don't bring in cash for their increased share. But if, the goodwill has already been created before and the promoters have got their share, promoters need to bring cash for additional share.