In mid-2018, my employer, 70-person company, less than 5 years in operation, sent out an employee survey. Fortunately, more than 50% of the responses were about getting cheaper 401k options, ditching American Funds, etc. HR asked for benefits committee volunteers, I joined to represent my location (we're spread over 3 regions). We don't have management positions in the company, only engineers and a few HR/admin staff.
I did a lot research and came up with options, wrote a report with substantial data (thanks to bogleheads and portfolio visualizer). Turned it in and gave our HR director a brief summary.
Last month, our new veep talked to the committee and received a briefing, then said the company leadership was going to look into 401k alternatives for 2019.
Today, veep sent out and email stating:
In January, we will evaluate 401(K) platforms in order to put a more attractive program in place. We will specifically include the programs recommended by the benefits committee in our assessment.
I'm stoked. They asked me if I wanted to be involved in the assessment and selection process. Naturally I said yes. I'm glad I have an awesome employer that asks for employee feedback and then uses the data to improve things for all.