Because 60% of European GDP is government spending, and the place where government gets most of that money is by taxing private businesses (profits & cap gains)

Because 60% of European GDP is government spending, and the place where government gets most of that money is by taxing private businesses (profits & cap gains), their products when sold (VAT and import duties), and their employees when they are paid by said businesses (income tax). No businesses means no wealth to redistribute which means no safety net. They are literally the bedrock of the entire system. So yes, society should place massive importance on making it easy for them to operate.