Unless we are talking about talent agents (which are rare in software engineering), the actual job of a recruiter is to work in the interest of his company. Then there are third-party recruiters and sorcerers who don't represent your interests either.

"They are just doing their job" is a weak excuse. Most of the recruiters are doing such a bad job in matching the workforce with companies that they end up wasting everyone's time. The only reason why these brute-force approaches work is the surplus of demand in the current SE labour market.