Take Kaspersky, for example. Its main protections are Database, KSN and Systemwatcher. Completely simplified. All other modules do not give stronger protection and do not catch more malware. So, it may be redundant. Not to mention the extra crap. VPN, filsehredder, etc. What does that have to do with protection? Nothing. They can just sell the crap at a high price. Boring and bullshit.