It's very hard to compare, the both them. Its like weighing a featherweight to a heavyweight. For sure, investing in gold and silver will really help you, a lot. When we say a lot, we really meant a lot. Gold and Silver's price really doesn't depend on the government or any agencies, it depends on its quality. While in banking, it rely on the protocol of their agency or their boss, if their protocol do not change, then they will not implement change, unlike in gold and silver.
I think that this idea has now become too much old, people now thinking about new system and ways of earning money. I think that in current mature people will refuse both the system and will surely give more preference to online trading and investment where they can find more opportunities of making money.