LOL! Hell no, he wasn’t. His ideas were simple, stupid and had not really a connection to the reality. It works maybe on a personal level, but mostly in your mind. If you have a connection with economics and the materialistic world, nah - it doesn’t. I think the funniest part is that nobody would remember him, if Engels didn’t make a lot of jokes about him. Even the only existing portrait of him is from Engels making fun of him. https://en.wikipedia.org/wiki/The_German_Ideology