Google knows that its Chrome browser is a serious consumer of RAM, but the development team is reportedly very aware of this, and are working on lowering Chrome's RAM consumption.
Thanks to a Reddit AMA session, a Chrome for Android engineer said: "We are actively working on reducing battery usage and we are looking into when Chrome is in the foreground and in the background. Since its inception Chrome has been focusing on security and performance of the web across all supported platforms. Performance sometimes has come at the cost of resource usage, but given the importance of the mobile platform this is one of the top things we are looking into".
Google has a serious focus on mobile, but it is not forgetting desktop users at all. As for the desktop side of things, Google added: "We are profiling Chrome to improve our start-up speed and proactively fighting memory bloat and memory leaks. For example, this year the first gesture latency and mean input latency has decreased steadily".