Gold's industrial uses are negligible as compared to it's monetary use value.  Granted, if gold were the price of silver, there would be a lot of uses for it pop up, but realisticly one must consider the industrial use value and the monetary use value as independent variables.  All the industrial use value of gold provides is a backstop against catastrophic monetary value collapse, which bitcoin does not have.  Silver does have many industrial uses for which there is no viable alternative, which is not the case for gold's industrial uses.  For example, silver is both toxic to many forms of bacteria, making it a valuable medical material; while also being fairly non-toxic to human life, contrary to almost all other heavy metals.  Gold is not toxic either, but nor does it have any other chemical properties of note, since it's non reactive.  This does make gold a good choice for conductive connectors, particularly in corrosive environments, but there are other solutions that exist for that.