Bitcoin Gold's creators and developers are fully aware of the coin's link to the larger world of cryptocurrencies, as well as the parent Bitcoin's history and evolution. To that aim, they've been concentrating on enhancements that would help the whole cryptocurrency ecosystem rather than simply Bitcoin Gold.
The fork was suggested by Bitcoin Gold's developers in order to migrate to the Equihash consensus method and make Bitcoin Gold ASIC resistant, placing a major portion of mining hash power back in the hands of people.
Bitcoin mining can be profitable, but it consumes a lot of resources. As a result, miners have decided to share their resources.