The wrinkle here is that it's not always obvious what projects will create business value. Unfortunately, if you're not in an organization with deep pockets and a long time horizon for projects to succeed, it's almost always a better business decision to work on projects that have a direct link to creating business value.
2. Using a technology because [insert large successful company or startup here] uses it well at scale is almost always the wrong decision for a startup. What works for Google, Meta, Uber, etc. will likely not work for your startup until you reach a certain critical level of scale.
3. Headcount is vanity metric. If a company is proud that they have a large team, you should probably run. Employees cost money and employee salaries count toward OPEX vs. CAPEX. What matters is revenue per employee, but many startups are pre-revenue.
4. Scaling your organization or technical stack before you have product market fit is a waste of time. Silicon Valley history is littered with dead startups you've never heard of that burned through their runway building over-engineered systems designed to scale to meet the demand of users that never came. The same is true of startups that built out massive sales departments before they had a product that people wanted to buy.