Assalamualaikum.... the simple understanding about the two philosophies.
Gustav Klimt-Secessionist - One off production
Adolf loos-Loos - Mass production
So, as an industrial designer I will prefer the loos is much better and suitable. Why I said that because, in Industrial design, we must design the object have aesthetics value but at the same time we must know about the production. However, the aesthetic value still must be have on the design, the element and principle also the main factor make a good design.
But if you only think about the aesthetics value,soul,impression of heart without thinking about mass production........How the destiny of product??