Of course, it is very important, crime in cyberspace is very high, and the most disadvantaged is us if we underestimate internet security... I once lost important data because I was not confident with the security of my device and network, from that I learned to care about security, so that my wallet was safe...
Of course we need highly security in order to keep our coins secure from stealer especially for hackers. Ever thought why a banks hired security guards? because they have to keep money safe from robbers.
One of the most important points that lie among the main points is security, to take care of your security that is how much your wallet is secure. Once you consider it important then you will not face with any scammers of hackers activities like stuff. Those who do not take care of their wallets and reveal their wallet passkeys lose their coins in no time. Better we consider it important because holding a wallet with some coins needs a lot of efforts and use of knowledge.