Yes. Volunteering is so much a part of society that it is often easier to describe the difference that volunteers make by imagining a society where no-one volunteered:
social and leisure activities would be significantly affected as there would be no rugby matches, sporting events or athletics, no Formula One motor racing or Olympic Games without the input of volunteer coaches, organisers and marshals
there would be no music events, pop concerts, festivals, Urdd or National Eisteddfodau without volunteer fundraisers, organisers or St John's Ambulance volunteers
there would be little medical research or advice and support to people with specific problems
people would die without the Samaritans, the lifeboat service, cave and mountain rescue teams and the British Red Cross
our health service would be significantly impoverished without the donations from volunteer-organised activities, such as tea shops and library trolleys, hospital radio and community volunteers to help discharged patients or those coming into hospital
the criminal justice system would break down without lay magistrates, witness support and victim support volunteers
much of the landscape, wildlife and areas of natural beauty would suffer neglect
many older, disabled and vulnerable people would be isolated and lonely.
As a volunteer you can really have an impact on peoples' lives and the community around you, as well as making your own life more fulfilled and rewarding.