Certifications are nothing more than awards or proof that you've undergone training in order to claim that title. In the grand scheme of things you're not necessarily as great as someone who had 5+ years of experience in blockchain technology if you've gone through an online course training program to get your certification lol. Nothing beats experience in this industry and I can attest to that with the fact that I had a friend in the past who bought these online course training programs, this time for blockchain technology and got his certification, in the end he worked at a fortune 200 company that doesn't even dabble in blockchain technology while another friend of mine who had 2 years of working closely with cryptocurrencies as a full stack developer landed a job in this industry and is comfortably working in the comfort of his own home. Not comparing or contrasting who's better and who's not, just that these certifications doesn't act as a guarantee that you'd be a master at the thing you just trained for. Mastery requires 20% training and 80% hands-on experience.