As noted author and philosopher Ayn Rand pointed out, they compete with one another to seize control of the mechanism of law (government) so as to benefit themselves at the expense of other groups attempting the same thing.
As to the good they do, that will depend on one's beliefs. In no case can they be considered peaceful as they are not attempting to persuade the citizenry, but rather have those citizens compelled to their particular view by governmental force of law.
It may be a case of a law flat out compelling a behavior in us, from refraining from gambling, or always buckling up. Or it may be a case of wishing funding for a pet project of their's that they feel everyone should pay for. It can be as relatively harmless as wishing to be excused from paying a given tax or following a regulation - which as all others still have to, will let them out compete other groups.
They can be corporations looking for profit, or non-profits looking for prestige, or political and/or religious groups looking for both.
study information that the different canidates want them to, then they give all of their studies back to the canidates. Hopefully the special intrest groups studies will help the canidates make a decision about which presidential candidate they will vote for.
They give an organized voice to a group of American people with the same opinions. They help Americans raise their voices loud enough for Congress to hear.
to influence legislators in favor of one particular issue
To promote their special interest of course.
To influence political decisions.
what is the purpose of the construction industry
Primary social groups are the main groups to which people belong. A great example of a primary social group would be the family.
Primary groups provide support and camaraderie, secondary groups offer specialized expertise, in-groups foster loyalty and cohesion, and out-groups may provide a contrasting perspective. Reference groups set standards for behavior and performance within the organization.
Her primary purpose is to entertain the reader.
Yes. Acceptance of others is a primary theme among most religions. This blind seething hatred of gay people by religious groups serves no purpose.
The purpose of any primary election is to choose candidates for the main election.
The purpose of any primary election is to choose candidates for the main election.
The main purpose of Interest Groups is to attempt to influence politicians
what is the primary purpose of accounting
A primary group has fact to face interactions and is more intimate than secondary groups. Secondary groups are more formal.
Our primary purpose is to provide information and training to families.
The primary purpose of "Hip-Hop Planet" was to inform.